1.Calculate the formula mass of each compound. Keep at least one decimal place in atomic masses...

 

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1.Calculate the formula mass of each compound. Keep at least one decimal place in atomic masses from the periodic table. H²S: amu HFO²:[ 2. Calculate the formula mass of magnesium perbromate, Mg(Br0+)2, in atomic mass units (amu or u). amu amu 3. Calculate the percent composition by mass of each element in LICIO4. % Li= % Cl= % 0= 4. How many grams of Br are in 285g CaBrz? 33.3g Ag= 33.3g Cr203 % % % g 8. Suppose you have two samples that are equal in weight, 33.3g Ag and 33.3g Cr203. Calculate the number of moles of each substance. mol mol 9.How many grams of potassium bromite (KBrO.) are there in 0.495mol? 0.495 mol= g 10. Convert 1.25x1024 atoms of carbon to moles of carbon. 1.25x1024 atoms= mol C 11. What is the number of formula units in a 1.00mol sample of CaO? formula units 14. Calculate the mass in grams of 1.10×1024 molecules of ethylene glycol. The chemical formula for ethylene glycol is C.H.O₂. mass: g 15. A sample of methane, CH., has a mass of 87.75g. Calculate the number of methane molecules in the sample. molecules 1.Calculate the formula mass of each compound. Keep at least one decimal place in atomic masses from the periodic table. H²S: amu HFO²:[ 2. Calculate the formula mass of magnesium perbromate, Mg(Br0+)2, in atomic mass units (amu or u). amu amu 3. Calculate the percent composition by mass of each element in LICIO4. % Li= % Cl= % 0= 4. How many grams of Br are in 285g CaBrz? 33.3g Ag= 33.3g Cr203 % % % g 8. Suppose you have two samples that are equal in weight, 33.3g Ag and 33.3g Cr203. Calculate the number of moles of each substance. mol mol 9.How many grams of potassium bromite (KBrO.) are there in 0.495mol? 0.495 mol= g 10. Convert 1.25x1024 atoms of carbon to moles of carbon. 1.25x1024 atoms= mol C 11. What is the number of formula units in a 1.00mol sample of CaO? formula units 14. Calculate the mass in grams of 1.10×1024 molecules of ethylene glycol. The chemical formula for ethylene glycol is C.H.O₂. mass: g 15. A sample of methane, CH., has a mass of 87.75g. Calculate the number of methane molecules in the sample. molecules

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Ill solve the questions one by one First lets start with question 1 Calculate the formula mass of each compound Keep at least one decimal in atomic masses from the periodic table a HS b HS c HFO To ca... View the full answer