Web6.99 x 1023atoms divided by 6.022 x 1023atoms/mol = 1.160744 mol or Br atoms 2) Disulfur hexabromide's formula is S2Br6. 1.160744 mol / 6 = 0.193457 mol of S2Br6present 3) The molar mass of S2Br6is 543.554 g/mol: 543.554 g/mol times 0.193457 mol = 105.15 g to three sig figs, 105 g 4) Dimensional analysis: 1 mol 1 mol 543.554 g 6.99 x 1023atoms x x WebSep 7, 2014 · Step 1. Calculate the number of moles of the element. n = 4.95 × 1023 atoms × 1mol 6.022 × 1023atoms = 0.8220 mol Step 2. Calculate its molar mass. Molar mass = 65.7g 0.8220mol = 79.9 g/mol Step 3. Identify the element. Look in the Periodic Table for an element with atomic mass 79.9 u. It's bromine! Answer link
Grams To Atoms Calculator - Study Queries
WebFigure 1. Each sample contains 6.022 × 10 23 atoms—1.00 mol of atoms. From left to right (top row): 65.4g zinc, 12.0g carbon, 24.3g magnesium, and 63.5g copper. From left to … WebAnswer: 1.24 x 1023 atoms If the atomic weight of magnesium is 24.3 g/mol, calculate how many magnesium atoms does 5g represent? Answer: 1.24 x 1023 atoms Question Transcribed Image Text: If the atomic weight of magnesium is 24.3 g/mol, calculate how many magnesium atoms does 5g represent? Answer: 1.24 x 1023 atoms Expert Solution floating picture shelves diy
Avogadro
WebHow many O atoms are in 2.00 g Al₂O3 ? Al = 26.98 g/mole, O = 16.00 g/ mole 3.54 x10exp22 O… A: Click to see the answer Q: )2.709 x 10 to the 23rd Ca+2 A: Given, 0.45 moles CaCO3 1 mole CaCO3 contains 1 mole Ca2+ ions. 0.45 moles CaCO3 contains = 0.45… Q: ow many fluorine atoms would it take to make up a mass of2.83×10—22 g? 25 atoms None of the… Web22. Ans:2.76 x 10^23 atoms Atomic mass of C = 12 g/mol. 1 mole contains Avogadro number of atoms, i.e. 6.023 x 10^23 atoms. so 12 g contains 6.023 x 10^23 atoms, hence … WebNumber of atoms = 2.7575 x10 23 atoms Step-by-step explanation moles = mass / molar mass mass of C = 5.50 g molar mass of C = 12.011 g/mol moles of C = 5.50 g / 12.011 g/mol moles of C = 0.4579 moles 1 mole of C = 6.022 x 10 23 atoms The number of atoms present in 0.4579 moles of C = 0.4579 moles x 6.022 x 10 23 atoms great job award clipart