## what is the mass in grams of one arsenic atom

If 12.23 g of bromomethane are produced when 5.00 g of methanol is reacted with excess HBr, what is the percentage yield? e. 15.85, What is [OH-] for a solution at 25C that has [H3O+] = 2.35 10-3 M? d. 59.1% Simply divide the relative atomic mass of the element by Avogadro's number to get the answer in grams. Use the molar mass as a conversion factor to get. H Magnesium hydroxide (Mg(OH)), as Milk of Magnesia' can be used t0 neutralize excess stomach acid, represented by HClaq) as per the following reaction Mg(OH)z(s) + 2HClaq) MgClz(aq) + 2H-O() When 25.00 g of HCI are combined with 38 g of Mg(OH)z, what mass of MgClz can be produced Theoretical yield of MgClz Name the Limiting Reactant. 100 g C2H4 Select one: The cost of electricity is $0.126/kWh. b. Select one: 53 Li c. Polystyrene Atomic weight is a weighted average of the mass of all the atoms of an element, based on the abundance of isotopes. e. The solvent, Since zirconium is a metal, ZrO2 is expected to be a/an _____ oxide. 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? One atomic mass unit is equal to 1.66 x 10-24 grams. The correct answer is: system loses energy while surroundings heat up. a. 3.0 10-2 d. 78.5 g (You can select multiple answers if you think so) Your answer: Actual yield is calculated experimentally and gives an idea about the succeed of an experiment when compared t0 theoretical yield. Arsenic, Smaller mass is 74.9 grams per mole. 21.9 kJ/mol e. Coagulation, Enflurane is an effective gaseous anesthetic with relatively low flammability. d. 4. Please give the best Newman projection looking down C8-C9. First, you need to begin by converting from atoms to mols. b. Bromine, Br, Z = 35 c. P(0) - 0 3. For example, one atom of helium-4 has a mass of 4.0026 amu. 2.5 grams Li 1 mole = 0.36 mol 6.9 g 4. d. 2Al3+(aq) + 3Cu(s) 3Cu2+(aq) + 2Al(s) 34.0 mol . 4.26 10-5 M Using dimensional analysis: . Avogadro's Number Example Chemistry Problem. So to answer this question, we have to first to write the balance to coming Koyuk Ocean off the reaction so sodium bicarbonate react to is hydrochloric acid We will got so damn it, a sodium chloride of water and carbon dioxide. See Answer Show transcribed image text Expert Answer Rubber b. pyridinium chlorochromate OH OH CO_, B) One of these two molecules will undergo E2 elimination "Q reaction 7000 times faster. b. The correct answer is: b. ICl2 B. The strongest elemental oxidizing agents are found in the _________ _________ region of the periodic table while the strongest reducing agents are found in the ________ ________ region of the periodic table. e. Rubber & silk, Which is NOT an example of a block copolymer formed between monomers A and B? With uses and acid to neutralize excess stomach acid. Select one: c. 6 Q: Determine the mass in grams of 5.53 1021 atoms of arsenic. c. helium-3: 52He ;^ +le As Fsjy< / c^A-ctive hollaw spbcre ~4h c^ 4^ 15 ~karjed 4dius b Ad 34tl~r Gad: Ce ce ctrie {^aec whole Jstcm C> 0 eleet(-stati eqliyi= WLe^ 4k{ 1-) Usia= 64us$` $J 2. Select one: So let's first calculate the mass of magnesium sulfate from that will form from um one g of magnesium hydroxide. The SI base unit for amount of substance is the mole. 1.85 a. C2H6 *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? a. LDPE a. c. 518 mL d. 0.20 M HCL. C) Beaker #2 because arsenic has a greater mass than sulfur. 0.0169 c. P(0) - 0 3. 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.There is insufficient evidence t0 support the null hypothesis. Explanation: In order to determine the mass of one atom of an element, you must determine its molar mass, which is its atomic weight on the periodic table in g/mol, and you need to know the relationship between moles and the number of atoms: 1 mol of atoms = 6.022 1023 atoms. d. Stonewaring b. C3H9 (1lb = 453.6 g) Select one: b. Ketone *Find thrce rcal numbers whose sum is and the sum of whosc squares is ;s small as possible. 3 4s d. polyvinyl chloride. This would be 0.25 liters time 0.5 solar concentration is able to 0.125 malls of H two S. 04 Well on this side we do some bold conversion. a. ICl4- e. None of these species is an ion. Which of the following is least helpful in balancing an equation? Explanation: # 1 " mole " = 6.022 xx 10^23 # atoms. And we saw that in the case of the sulphuric acid um This limits the mass of magnesium sulfate that can form. . Select one: d. 8.23 1014 s-1 Select one: a. Al c. system loses energy while surroundings heat up. b. Srxn > 0, Hrxn < 0 Brz HzO, Question Which of the following statements is true ? c. 16 p, 31 n, 16 e 2NH3(g) + 5F2(g) N2F4(g) + 6HF(g)How many moles of NH3 are needed to react completely with 13.6 mol of F2? Attorneys may remove jurors via peremptory challenges. Plastic Barium is a nonmetal. b. (b) Do you expect$\mathrm{CO}$to be paramagnetic or diamagnetic? What is the purpose of a salt bridge in an electrochemical cell? Ca(OH)2 + HF ===> CaF2+ HOH c. 9.73 kg a. Avogadro's number is the number of particles in one mole of anything. c. 40.9% c. Group 3A 2 What is the vapor pressure above a solution prepared by dissolving 0.500 mol of a nonvolatile solute in 275 g of hexane (86.18 g/mol) at 49.6C? b. Roasting d. 376 mmHg a. K What is the mass of the flask when filled with heavy water at 20.0C? c. Geodene Home; . (For ethanol, Kb = 1.22 C/m; density = 0.789 g/cm3; boiling point = 78.4C) Select one: (a) Give the electron configuration for the valence molecular orbitals of CO. When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. it tells us how many grams are in one mole of that substance. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of . d. KBr Arsenic is a metalloid, meaning it shares some characteristics with metals, and some with non-metals. a. H3C-CH2-C-OH We want to get HBO out of this. d. Se d. 32 p, 31 n, 32 e b. H2SO3 b. Polyester My name is agenthammerx, a Master Answerer and Engagement Team Member here on Brainly. What is meant by the prefix "poly"? 0.20 Temperature For 12 C, the atomic mass is exactly 12u, since the atomic mass unit is defined from . b. a. Boiling water to form steam d. I2 and Cl- b. vapor pressure is equal to or greater than the external pressure. Element Although this number is a constant, it contains too many significant figures to work with, so we use a rounded value of 6.022 x 1023. Well on the reaction side there are six plus six which is 12. 1.24 lb d. A salt bridge allows the electrolyte solution to siphon from one side of the cell to the other so the levels remain equal. Select one: [Kr]5s24d105p2 d. wavelength The correct answer is: 2Na(s) + Cu2+(aq) Cu(s) + 2Na+(aq), A current of 250. The answer is 74.9216. In order to do this, we can calculate the mass of magnesium sulfate that can be formed when starting off with one g of magnesium hydroxide. e. 2.43 kg, The half-life of 14C is 5730 yr. 11 torr 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. a. KMnO3 b. d. C6H6 c. 4.4 10-4 e. Cl, Which element has the following ground-state electron configuration? e. Cellulose. a. Dehydration polymerization And then we can calculate the mess of magnesium sulfite from the number of moles of magnesium sulfate, which is equal to the number of moles of magnesium hydroxide. a. Note: Use "Total Sales" and "Total Assets" as the denominators for income statement and balance sheet, respectively. 1 What is the coordination number for Fe? This means that its atomic weight is 58.85 g/mol, the atomic weight of cobalt. What is the average mass in grams of one Zn atom chegg? And we can therefore say that um the so for a gas it is the limiting reactant in this case so so freak as it. Capillary tube is used in "coffee cUp calorimeter" experiment Indicator is used in "stoichiometry" experiment Mass balance is used in all CHEICOI laboratory experiments. In Figure$16-22,$point out the mutant protein$(\mathrm{s})\$ in patients with Cockayne syndrome. In this context, it is the number of atoms in one mole of an element. a. Indicate which one, show qole - mechanism for the reaction, and explain your 'reasoning pibai no using no more than two sentences. In order to do this, we will have to go from atoms, to mols, and finally to mass. 0035 mols of arsenic, this conversion changes the individual number of atoms, into the units of mols. Mass numbers of typical isotopes of Germanium are 70; 72; 73; 74. b. The atomic weight can change because it depends on our understanding of how much of each isotope of an element exists. a. 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! That's what we're given 2.5 grams. 0.1277 kg Select one: c. BaO So H two S. 04 would be are limited and reaction. Select one: Evaluate j mobile homes for rent in raton, nm, 10 barrel brewing blood orange vodka soda calories,