Web1) We need the moles of bromine: 6.99 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 WebOct 21, 2024 · Answer: There are number of H atoms in 7.80 mol of ammonium sulfide. Explanation: The formula of ammonium sulfide is . There are 2 nitrogen atoms, 8 hydrogen atoms and 1 sulfur atom in one molecule of ammonium sulfide. Calculate moles of hydrogen atoms as follows. = 62.4 According to Avogadro's number 1 mole contains
2.4: The Mole and Molar Mass - Chemistry LibreTexts
WebA: That is, the molar mass of a substance is the mass (in grams per mole) of 6.022 × 10 23 atoms,… Q: how many moles of oxygen are in 0.629 moles of calcium phosphate A: The formula for Calcium phosphate is Ca3 (PO4)2 Q: How A: We are given The mass of cadmium = 1.0g To find the moles of cadmium = mass / molar mass = 1.0… WebMar 30, 2014 · In one molecule of sulfur, S8, there are 8 sulfur atoms. Thus, number of atooms in 7.20 moles of sulfur. = 8 x 7.20 x 6.02 x 1023. = 3.47 x 1025. Note: Sulfur does … dhaka express tracking
A sample of gold contains 7.02 x 1024 atoms. How many moles …
Web7 moles to atoms = 4.21549905E+24 atoms 8 moles to atoms = 4.8177132E+24 atoms 9 moles to atoms = 5.41992735E+24 atoms 10 moles to atoms = 6.0221415E+24 atoms Want other units? You can do the reverse unit conversion from atoms to moles, or enter any two units below: Enter two units to convert From: To: Common amount of substance … WebAug 10, 2024 · That is, the molar mass of a substance is the mass (in grams per mole) of 6.022 × 10 23 atoms, molecules, or formula units of that substance. In each case, the … WebQ: How many hydrogen atoms are in 7.10 mol7.10 mol of ammonium sulfide? Q: What are the number of moles of in 10 g of CaCO3? A: Given that: Mass of CaCO3 = 10 g Molar mass of Ca = 40 g/mol Molar mass of C = 12 g/mol Molar mass…. Q: How many molecules (not moles) of NH3 are produced from 2.21*10^-4g of H2? cider braised pork belly