WebFeb 14, 2024 · Next, multiply the atomic mass of each isotope by the proportion of the element in the sample: 0.98 x 12 = 11.76. 0.02 x 13 = 0.26. For the final answer, add these together: 11.76 + 0.26 = 12.02 g/mol. … WebRelative atomic mass The mass of an atom relative to that of carbon-12. This is approximately the sum of the number of protons and neutrons in the nucleus. Where …
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WebANSWER==> 5x10 -3 g or 0.005 g. 80 When heated, a 125.0-kilogram sample of arsenopyrite yields 67.5 kilograms of FeS. Determine the total mass of arsenic produced in this reaction. [ 1] HIGHLIGHT TO SEE THE ANSWER. Find the missing mass 125.0kg-67.5kg= 57.5kg. 81 Write the formula for the compound produced when arsenic is … WebExpert Answer. Answer 1 : Part 1 : We know, the atomic weight of Arsenic is 74.922 g/mol Hence, in 74.922 g of Arsenic, there has Avogadro numbers of Arsenic atoms i.e. 6.023*1023 atoms. Thus, 6.023*1023 atoms of Arsenic = 1 mole of Arsenic Or, 1 atom of Arsenic …. 3 attempts left Check my work Be sure to answer all parts. fallout 4 alt rock radio mod
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WebCalculate the molar mass of Arsenic Trioxide in grams per mole or search for a chemical formula or substance. ... # of Atoms: 2 Mass Percent: 75.739%. Element: Oxygen … WebApr 13, 2024 · [Federal Register Volume 88, Number 71 (Thursday, April 13, 2024)] [Proposed Rules] [Pages 22790-22857] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2024-06676] [[Page 22789]] Vol. 88 Thursday, No. 71 April 13, 2024 Part IV Environmental Protection Agency ----- 40 … WebJun 23, 2016 · Avogadro's constant says that 1 mole of any atom contains 6.022 ⋅ 1023 atoms. In this case you have 3.40 ⋅ 1022 atoms: 3.40⋅ 1022 atoms 6.022 ⋅ 1023 atoms mol = 5.65 ⋅ 10−2mol. Step 2. The atomic mass of helium (He) will give you the weight of one mole of this molecule: 1 mol = 4.00 gram: 4.00 g mol ⋅ 5.65 ⋅ 10−2mol = 0.226g. fallout 4 alternative