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How are these different mutations thought to account for the different disease symptoms? a. Chemistry Measurement Unit Conversions 1 Answer Teun Dec 15, 2016 So 4.03594014 1023grams Explanation: Here are some prefined values. a. So four. One mole of titanium (6 1023 atoms) has a mass of 48 grams, and its density is 4.54 grams per cubic centimeter, so the center-to-center distance between atoms is 2.60 10-10 m. You have a long thin bar of titanium, 3.0 m long, with a square cross section, 0.15 cm on a side. Select all that apply: The halogen atom is nucleophilic The carbon atom attached to the magnesium reacts as carbanion: The carbon-magnesium bond is polarized with partial negative charge on carbon: The magnesium atom is less electronegative than the carbon atom: The carbon atom bonded to the magnesium is electrophilic: (2 points): Draw the products for the reaction and then draw the mechanism for the reaction below: In mechanisms, you must show all intermediates, lone pairs, formal charges and curved electron flow arrows. b. two amino groups and one carboxylic acid group. The mass of any isotope of any element is expressed in relation to the carbon-12 standard. Calculate the molecular or formula mass of rubidium carbonate, Rb2CO3. b. The molecular weight of arsenic is 75, so one mole of As atoms has a mass of 75 grams. Complete the table below:if " = ICu = 2 =)(- + f-")fnifn 2 3all steps1265Theorem:[Calculus, infnite power series for e ]e" =CXofinite number of terms from that infinite series, s0 uses polynomial Pn(z) of some degree - computer Or calculator can only usee" ~ Pn(z) = Ci= 1We will focus on getting good approximation of below:=e-1 ~ Pa(-l)plz)Pn(-1)rounded B(-I- 10000 +0.6321 0.0000 0.3679 0.5000 +0.1321 00S45 +20071 0.3665 3,00121+I 1+2+ 2*, (2 + 2 +*)4 1+2+ =(6+ 62+314 +1&quo. b. amplitude We got 0.125 rolls of H two. The vapor pressure of a solvent over a solution decreases as its mole fraction increases. c-What is the mass of 1.40x1020 atoms of calcium? 1.8 torr c. J. J. Thomson e. K2Mn2O7. 1 mole = 6.02 x 1023 atoms Mole: Is a very large number used to describe # of particles Avogadro's number: 6.02 x 10 23 atoms = 1 mole (Amadeo Avogadro) Molar Mass: if you have 1 mole of an element, it weighs the atomic mass number in grams CONVERSION FACTORS: 1 mole . That's what we're given 2.5 grams. If the mass of a substance is known, the number of moles in the substance can be calculated. e. C. The electron dot formula for molecular oxygen has If the adhesive forces between a liquid and the walls of a capillary tube are greater than the cohesive forces within the liquid, d. Esterification For 12 C the atomic mass is exactly 12u, since the atomic mass unit is defined from it. c. NH3 0.75 mol of a volatile compound in 750 g of ethanol The original periodic table of the elements published by Dimitri Mendeleev in 1869 arranged the elements that were known at the time in order of increasing atomic weight, since this was prior to . d. 3.8 x 103 g c. 6.17 1014 s-1 The correct answer is: Paraffin wax begins to melt at 57C. c. Mercury, Hg, Z = 80 a. 2NH3(g) + 5F2(g) N2F4(g) + 6HF(g)How many moles of NH3 are needed to react completely with 13.6 mol of F2? How many grams of chlorine is that? What is its formula? . e. transition element, main group, The correct answer is: upper right, lower left, Which of the following is a metalloid? )Find the probability that a package will weight between .8954g and .9456g. The unit of measure for mass is the atomic mass unit (amu). 0.5101 kg Brz HzO, Question Which of the following statements is true ? Sxy +y2 7. 19.5 kg b. R-CH2-NH2 Mass numbers of typical isotopes of Arsenic are 75. -$382 B. The given problem will solve by using Avogadro number. Q: Determine the mass in grams of 5.53 1021 atoms of arsenic. Select one: e. Prediction, Which of the following cannot be separated into simpler substances by chemical means? *Find thrce rcal numbers whose sum is and the sum of whosc squares is ;s small as possible. Let f be an integrable function on [a,b]: Then, forae.x (a,b), 3lim| [3t Prove _ mattux = nol solved correclly Expzin tho mislake and find Iho correcl solution Assume that the indicaled inverses exisf The equation XAEB,XeA-'0 Whal % tha mistake? Select one: The amount of peremptory challenges attorneys may use are: Let < G,* > be abelian gTOup and S = { be G:|b = 1or | = 11 } Show that 5 ix # subgroup of G ? Which solution has the highest vapor pressure? Circle the most stable moleculels. e. 1470 mmHg. d. 6.00 lb 65.39 g 1.09 x 10-22 8 3.94 x 10258 65.39 amu. The correct answer is: one carboxylic acid group and one amino group. b. e. Alcohol, Which one of these materials is a copolymer? d. alpha particle: 42He One molecule of water (H 2 O) would weigh 18.02 amu (21.00797 amu for H + 15.9994 amu for O), and a mole of water molecules would weigh 18.02 grams. c. 15 torr Well on the reaction side there are six plus six which is 12. (c = 3.00 108 m/s) e. 9, The vapor pressure of ethanol is 400. mmHg at 63.5C. Select one: b. V c. Compound So first of all we need to convert the mass of magnesium hydroxide to the number of moles of magnesium hydroxide. What is the mass of one atom of magnesium in grams? Please give the best Newman projection looking down C8-C9. c. BaO c. 5p There are three on the product side. d. Br3F d. 4f Select one: (90 points) WOTe D WAQ fubonq wolem Iliw bujocutos doidw obinob (A Clzlno xus I5wjoqro) TOI matEd9em Cl_ (atrtiog 08} CI' "Cl Cl- "Cl 6420 HOsHO HO HOO Ieen, What is the IUPAC name of the following compound? One mole of carbon is 6.022 x 1023 atoms of carbon (Avogadro's number). 1.55 There are 74.92 grams of arsenic in 1 mole of arsenic, so we can make another ratio. (The following information applies to the questions displayed below.] Input: From the top bar, select whether you want to convert atoms to grams or grams to atoms e. 2.43 kg, The half-life of 14C is 5730 yr. a. Hexane-heptane 4.0 10-3 One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. Avogadro's Number Example Problem: Mass of a Single Atom, Applying the Formula to Solve for Other Atoms and Molecules. Select one: So we calculated the massive magnesium sulfate that could be formed in each case. An unpolarized beam of light with intensity 10 = 98.8 lux is incident on three ideal polarizing filters (lux = 2.). Arsenic is a metalloid, meaning it shares some characteristics with metals, and some with non-metals. b. ICl3 d. Ge a. e. 35 yr, Which is an incorrect representation of the indicated particle or nucleus? (The mass of one mole of arsenic is (The mass of one mole of arsenic is A: Answer:- Firstly using the given number of atoms of arsenic, moles are calculated. Select one: Find P(X > 2), A stone is thrown horizontally at 15 m/s from the top ofa cliff 44 m high;8 YHow long does it take the stone to reach the bottom of the cliff?b)How far from the base of the cliff does the stone strike?1/2gt?tanOpposite Adjacent vsin(0Vcos(, Let ^ =and T : R' _ R'be thc lincar transformation dcfincd by:)-[:] 2 and find thcir algcbraic multipliciticsShow that the only cigcnvalucs of A arc(b) The cigenspace associated to cigcnwaluc A = 0 ise= "{L: I} Find basis for the cigcuspace Ez associated t0 cigcnvaluc A = 2 [Nutbcr % continucu On MAAT pagc]. Find all second-order partial derivatives of the given function:2 = 6xln(xty), Wrilo and simplfy Iho Intogrnl thol Oros Iho arc Ionguh ol tho lollowing curvo on Iho pivon Inlocvul nocotanry: 4to {ochnokrly lo nvalunto approxrato Iho intogml(3*), for 0sx* 2Sot up tho intagral Ihat gos Iho ara longth &l Iho curvo; Soloct tho corroct colco bolow nnd 6il In tho unorur bax la comploto your cholco. c. Germanium, Ge, Z = 32 So this limits the amount of product that can be formed. B. Px. c. 2.46 10-4 J a. In different types of solutions, solvents must be liquids. a. triple point. The phrase 'good cholestcrol" refcrs [hcse Ilcoproteim como crcs VLDL HDL anat 8~~~~ S0 Classify this molecula Ri Rz wnd nydrocaroon chains - Heraid phoscnolipic C4-C trlacy glycerolclass futhks molecule: stcroid tnacylenceroiphospholipidtriacylelycerols are Iikely to solotatroon emntnluge saturatcd unsaturatcoThis type of lipid Houno steroids triacylglycerolsCememprant phospholipid: 501psbile Alt prostarlandinsProtcins are polymers of acids imino acidscarhoxlIc acid?Riucosecnnwenceaml. a. (1lb = 453.6 g) Let f be an integrable function on [a,b]: Then, forae.x (a,b), 3lim| [3tProve _, Mattux = nol solved correclly Expzin tho mislake and find Iho correcl solution Assume that the indicaled inverses exisf The equation XAEB,XeA-'0 Whal % tha mistake? e. None of the above. Select one: The atomic mass is the mass of an atom. d. The force acting on an object is equal to its mass times its acceleration. Thank you for taking initiative to check out Brainly and for posting your first question! 126C e. More that one of these oxides are amphoteric. b. mass (m) = moles (n) molar mass (M) The molar mass of the element arsenic (As) is 74.922 g As/mol As. a. b. Ketone You can specify conditions of storing and accessing cookies in your browser. Which statement is false? d. 12.4 kJ d. the area of the cubic cell -CH2CHCH2CHCH2CH- 3 moles Arsenic to grams = 224.7648 grams. c. Three samples of wax are heated to 75C. Pycnometer bottle has special design with capillary, Which of the following molecules could be formed via PCC (pyridinium chlorochromate) oxidation of a secondary (29) alcoholin _ polar aprotic solvent? Radical polymerization Which is the strongest acid? Pethanol = 50.0 torr at 25C. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Answer and Explanation: 1 Become a Study.com member to unlock this answer! b. e. Cellulose. a. BrF Label all primary, secondary, and tertiary carbons. (70 points) OH. You can view more details on each measurement unit: molecular weight of Arsenic or mol The molecular formula for Arsenic is As. The orbitals have the same energy order as those of the $\mathrm{N}_{2}$ molecule. So now we're going to wear a gun problem. T (C)-84.5-71.2-47.3P(mmHg)40.0100.0400.0 b. neutron: 10n 13. The atomic mass of arsenic is 74.92 g/mol which suggests that the mass of 1 mol of arsenic atom is 74.92 g. 1 mol of arsenic atom contains 6.023 1023 number of arsenic atoms. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. c. Srxn< 0, Hrxn < 0 d. KBr a. Sn d. C6H6 c. Polypropylene (b) Do you expect $\mathrm{CO}$ to be paramagnetic or diamagnetic? a. K d. ion-dipole forces b. -C-N- b. Sb Select one: Plug in the atomic mass of carbon to solve for the mass of 1 atom: mass of 1 atom = mass of a mole of atoms / 6.022 x 1023, mass of 1 C atom = 12.01 g / 6.022 x 1023 C atomsmass of 1 C atom = 1.994 x 10-23 g. The mass of a single carbon atom is 1.994 x 10-23 g. The mass of a single atom is an extremely small number! Write A/Z and symbol-mass format for an atom. Assume the density of water is 1.0 g/mL. Example #2: A 1.443 g sample of an unknown metal is reacted with excess oxygen to yield 1.683 grams of an oxide known to have the formula M 2 O 3 . What is the average mass, in grams, of one arsenic atom? what is the mass in grams of one arsenic atom. Select one: Select one: First, you need to begin by converting from atoms to mols. c. P d. amino acid. So let's substitute the values to calculate the number of models freak acid, 0.605g, divided by the molar mass of suffering acid, which is 98 08 Crimes Per Moon. The answer is 74.9216. The . a. Graphene What is the vapor pressure of ethanol, in mmHg, at 34.9C? c. its amphoteric behavior. b. Robert Millikan Ozone (O3) in the atmosphere can react with nitric oxide (NO) as follows.O3(g) + NO(g) NO2(g) + O2(g). b. a. Select one: Right. Select one: Barium is a nonmetal. Select one: You need to add up the masses of all of the atoms in that one molecule and use them instead. So the number of moles of magnesium sulfate will be equal to one times the number of moles of magnesium hydroxide. I will list five. 10.0 lb 220 mmHg d. Phenomena b. e. nuclear binding energy. You use the periodic table to look up the mass of each atom (H is 1.01 and O is 16.00). Select one: c. 518 mL c. lower left, upper right a. Right now, we use mole ratio, Which is one over one to calculate the number of moles of magnesium sulfite in this case. c. magnitude The times is like overweight. d. lower right, upper left a. Turning hair yellow with bleach 0.75 mol of a nonvolatile compound in 750 g of ethanol e. 0.7917 kg, Which of the following aqueous solutions should demonstrate the most ideal behavior? c. 2.00 103 kJ/mol -False. Select one: b. critical point. d. 55.85 g Select one: It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. e. Polypropylene, Which of the following pairs of liquids is least likely to be miscible? A) 5.48 10 -23 g B) 33.0 g C) 74.9 g D) 1.24 10 -22 g E) 8.04 10 21 g Ans: D Category: Easy Section: 3.2 11. c. 6.80 mol it tells us how many grams are in one mole of that substance. e. transition state. e. Rubber & silk, Which is NOT an example of a block copolymer formed between monomers A and B? Select one: What is the coefficient of H2O when the following equation is properly balanced with the smallest set of whole numbers?___ Al4C3 + ___ H2O ___ Al(OH)3 + ___ CH4 c. 3.0 M LiF Select one: The location that indicates conditions under which two phases can exist in equilibrium is called the d. its ability to form multiple bonds with hydrogen. a. C12H28 c. Melting butter e. BrF3, Which of the following substances contains the greatest mass of carbon? Select one: b. Starch b. the liquid level in a capillary tube will rise above the surrounding liquid and the surface in the capillary tube will have a concave meniscus. 0.029 yr 1.85 Select one: The vapor pressure of a solvent over a solution decreases as its mole fraction increases. c. C4H10 Finding molar mass starts with units of grams per mole (g/mol). Group 2A (d) CO can react with OH$^{-}$ to form the formate ion, HCO$_{2}^{-}$ . e. dipeptide. mass of 1 atom / 1 atom = mass of a mole of atoms / 6.022 x 10 23 atoms Plug in the atomic mass of carbon to solve for the mass of 1 atom: mass of 1 atom = mass of a mole of atoms / 6.022 x 10 23 mass of 1 C atom = 12.01 g / 6.022 x 10 23 C atoms mass of 1 C atom = 1.994 x 10 -23 g Answer The mass of a single carbon atom is 1.994 x 10 -23 g. This means that its atomic weight is 58.85 g/mol, the atomic weight of cobalt. 4.26 10-5 M How many grams Arsenic in 1 mol? d. Ether Converting the mass, in grams, of a substance to moles requires a conversion factor of (one mole of substance/molar mass of substance). Project The required tasks are detailed below: (1) Prepare vertical common-size income statements and balance sheets for both companies. The solubility of a gas increases as the temperature decreases. Use Rodrigue's formula to calculate P (4) Circle correct conclusion_ There is sufficient evidence to support the alternative hypothesis_ 2) There is insufficient evidence to support the alternative hypothesis_ 3) There is sufficient evidence to support the null hypothesis. c. C3H7 c. 9.73 kg Atomic weight is a weighted average of the mass of all the atoms of an element, based on the abundance of isotopes. d. 4. Select one: Now we have two aluminum isles on the product side, but only one on a reaction size or put you here and now for a number of hydrogen is there are only two on the product side. d. one carboxylic acid group and one amino group. d. 4.87 kg A) 3.00 g B) 174 g C) 363 g D) 1.81 u 1024 g E) 40.3 g C) 363g Select the compound in which sulfur has its highest possible oxidation number. c. 46.7489 g b. Polyester b. Sulfur, S, Z = 16 11 torr b. d. Se When a spring is stretched from its equilibrium length The spring exerts force in the direction it is being stretched The spring exerts force in the direction opposite that it is being stretched The spring exerts a force normal to the direction it is being stretched The spring does not exert any for All employees are expected to act according to their organization's Code of Ethics or Conduct, based upon the values of the organization. This means that if you have 3x10 24 atoms of chlorine, it is the same as having 176.6 grams of chlorine. https://www.thoughtco.com/avogadros-number-example-chemistry-problem-609541 (accessed March 4, 2023). Consider a block of iron with a mass of 819 g. What is the mass of a block of magnesium that has the same volume as the block of iron? Select one: 0.0197 c. NH4+ c. 2.8 x 103 g Using dimensional analysis: . So it's 0.60 605 g divided by the molar mass of so forget asset, which is nine 8.08 g per moon. Therefore this resulting atomic mass is calculated from naturally-occurring isotopes and their abundance. Select one: a. Aldehyde 0035 mols of arsenic, this conversion changes the individual number of atoms, into the units of mols. a. found in proteins is called a (an) N = A household receives a $145 electricity bill. So you want to make this 16 So there will also be 12 hydrogen on this side and all this equation should be balanced. e. 400. torr, Safrole was once used as a flavoring in root beer, until it was banned in 1960. (0) - (-1) 2(!) Given Cu2+(aq) + 2e- Cu(s) E = +0.34 V Al3+(aq) + 3e- Al(s) E = -1.66 V Na+(aq) + e- Na(s) E = -2.71 VWhich of the following reactions will occur? B. e. basic, For a chemical reaction to be spontaneous at all temperatures, which conditions must be met? a. Lithium, Li, Z = 3 So let's start with the H two S. 04 1st. Select one: D .Explanation: The correct option is (D) 1.24 X 10-22 g. The atomic mass of arsenic is 74.92 amu, 1 mole of arsenic atom has 74.92g weight. Phexane = 400.0 torr at 49.6C. d. Solutions A and B have the same vapor pressure and it is higher than the vapor pressure of solution C. Use a balance sheet to keep track of the number of elements. The maximum number of electrons that can occupy an energy level described by the principal quantum number, n, is c. solids a. positron: 01B 1) An atom of arsenic has a mass of 74.92 grams. 81 from chapter eight in this problem were asked to, uh, her first. (2.11e21 arsenic atoms) x (1 mol/6.02e23 atoms) = . d. amorphous solids The number 6.022 10 is called Avogadro number. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. One atomic mass unit is equal to 1.66 x 10-24 grams. What is the average atomic mass for an element that has an isotope with a mass of 107 and a percent abundance of . Select one: c. Br2F3 a. B3+ Ethylenediaminetetraacetic acid (EDTA) is hence, mass of 1 atom of arsenic is 1.2441023 X 10-22. Grams to Atoms Calculator is a free online tool that displays the conversion from grams to atoms for the particle. 53 Li Atoms are the fundamental building blocks of all matter and are composed of protons, neutrons, and electrons. c.H3C-CH2-C-CH3 And now we want to find a mass of Htoo produced. b. b. H2O a. Which oxide is an amphoteric oxide? In acid base titration experiment our scope is finding unknown concentration of an acid or base_ In the coffee cup experiment; enctgy ' change is identified when the indicator changes its colour. *Find thrce rcal numbers whose sum is and the sum of whosc squares is ;s small as possible. a. e. Bromine, Br, Z = 35, The correct answer is: Germanium, Ge, Z = 32, The alkali metal elements are found in _______ of the periodic table. d. 8.23 1014 s-1 a. 61 g 6 moles Arsenic to grams = 449.5296 grams. b. Select one: a. acidic It's easy to find the mass of a single atom using Avogadro's number. d. 29.3100 g The correct answer is: the liquid level in a capillary tube will rise above the surrounding liquid and the surface in the capillary tube will have a concave meniscus. c. 6.17 1014 s-1 Question 2 (10 marks)Use the binomial series to find the first four non-zero terms of (1 + x*)3/2,[4 Marks](i) Find the error using the terms found in (i) at x 0.2,[3 Marks](iii) The expressioncan be expressed in the form:a(x - b)? So let's compare this massive magnesium sulfate with the mass that formed when we started off with magnesium hydroxide. (NA = 6.022 1023 mol-1) b. C6H14 e. Acetic acid-acetone, The correct answer is: Hexane-acetic acid, A solution is 40.00% by volume benzene (C6H6) in carbon tetrachloride at 20C. c. Ester The unit of measure for mass is the atomic mass unit (amu). Attorneys may remove jurors via peremptory challenges. b. Polymer . . 29.2573 g a. Hydration Create your. Given: Hi-6m and H-4m. a. all the columns for the element calcium are filled out correctly. Which of the following ligands has two different types of donor atoms? c. 8 c. 40.9% c. 246 torr What is the average mass_ in grams, of one arsenic atom? Here's how to use the information to determine the mass of a single atom. Avogadro's number is the number of particles in one mole of anything. The correct answer is: its ability to catenate. Although the problem was worked using carbon (the element upon which Avogadro's number is based), you can use the same method to solve for the mass of an atom or molecule. Reasons why recycling scrap copper is more sustainable than extracting copper from copper ores, Compose the cathode and anode processes of melt electrolysis of MgS, the total electrolysis equation, Compose the cathode and anode processes of electrolysis of an aqueous solution Li2SO4, the total electrolysis equation, Calcium hydroxide reacts with hydrofloric acid according to the following reaction. d. HClO3 Note that each element may contain more isotopes. So we have HCL reaction with sodium bicarbonate, which is in a h C oath c 03 and this will produce carbonic acid, which will break down further. c. 3.45 kJ/mol Which of the following is not a polymer? 4s 6.46 10-16 J d. Srxn < 0, Hrxn > 0 b. KMnO4 Select one: 0.052 M b. d. Stonewaring It has an acid dissociation constant of 0.42. 4d Select one: a. HBrO3 So four there will be six most of the ratio produced and actually covered the most of HBO into grams as well. The orbitals have the same energy order as those of the $\mathrm{N}_{2}$ molecule. a. There is insufficient evidence t0 support the null hypothesis (The following information applies to the questions displayed below.] a. And the mass, the maximum um mass of magnesium sulfur that can form here. So the mess off hydrochloric acid equals through the most of hydrochloric acid. Now first of all we need to check if the reaction equation is balanced or not and we can see that it's not balanced. The atomic mass of potassium is approximately (a) 19 amu (b) 39 amu (c) 59 amu. c. 3. c. 0.27 c. phase boundary. a. vapor pressure is exactly 1 atmosphere. Find the number of automobiles whose total mass is the same as 1.0 mol blueberries. a. not useful as a chelating agent. June 29, 2022; creative careers quiz; ken thompson net worth unix . -A-B-A-B-A-B-A-B-A-B- Select one: b. polystyrene. 7.4 yr Tritium decays by beta decay and has a half-life of 12.3 yr. Select one: Choose the correct answer bolw Mired the koft mulplicwton property and Iha rkazht mutipiicallon poporty 0 B The mainx= should hav 11. And then multiply this with the molar mass of magnesium sulfate, 1 20.36 graham, sperm. Select one: a. LDPE Calcium fluoride, CaF2, is a source of fluorine and is used to fluoridate drinking water. d. 16 yr Use the molar mass as a conversion factor to get. d. The greater the pressure of a gas over a solution, the greater its solubility. 62.4 g Helmenstine, Anne Marie, Ph.D. (2021, June 2). c. 9.27 10-23 g (For water, Kf = 1.86 C/m.) In this context, it is the number of atoms in one mole of an element. Select one: d. CH2.3 -$1,372 C. -$1,5 Cx' , 0sxs3 Let f(x) = 0, elsewhere 5. What new isotope is also formed? d. 59.1% + where and are constants: Calculate the values of will give less Idd-numbered homework and practice to and fewer easy problems sents what you will understand - find the material before responsibility to on the exam: This is to prepare determine how you doing the optional you study and what material ework practice and odd-numbered problems you nn Sign Save Homework: Chapter 14 Material Requirements Planning erations Score: 0 of 1 pt 15 of 20 (10 complete) HW Score: 42.75%, 8.55 of 20 pts Problem 14.20 - Bookmatch Question Help You need to schedule 10 units of product Alpha for delivery in 6 weeks. b. ionic crystals b. Al2O3 The correct answer is: 2Na(s) + Cu2+(aq) Cu(s) + 2Na+(aq), A current of 250. e. 6s, What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm? Hydrogen is a metal. b. Atomic Number of Arsenic.