n the CCI2F example, if the molar mass of the compound was 305.7 g/mol, what would the molecular mass have been? O C3C12F3 O C2C14F2 O C3C16F3 O CC12F

H. H. Three moles of the compound in the figure above would weigh how many grams? (The atomic masses, in daltons, are approximately 12 for carbon, 1 for hydrogen). O=U エーO CH

How many carbon atoms are in 545.8 g of C22H14?

How many atoms are contained in each of the following? (Please enter your answers in scientific notation, i.e, 1.00E+25, when necessary) 3 molecules CH3COOH 2.80 mol C2H6 11.2 mol H2O 5.10 g Au 1.7 g PCl3 0.37 g C6H12O6

A 56.4 g sample of a compound with a molecular mass of210 u was found to be composed of 12.35 g of sodium 25.77 g of carbon, 1.07 g of hydrogen, and an unknown mass of oxygen. What is the molecular formula for this compound?  A chemist analyzed an unknown compound and determined that it was composed of 2.2 percent hydrogen, 26.7 percent carbon, and 71.1 percent oxygen. What is the empirical formula for this compound?  Acetone is a liquid solvent that works well as a nail polish remover. Acetone contains 62.0 percent carbon, lOA percent hydrogen, and 27.5 percent oxygen.  The molecular mass of acetone is 58.1 u. What is the molecular formula for acetone?

How many total atoms are in the compound CuSO4?  How many elements are in 2H2SO4?  How many molecules are found in this formula 2Li3PO4?  How many atoms of carbon are found in glucose, C6H12O6?

B. How many grams of Al2(SO4)3 would contain 1.236 × 1020 atoms of sulfur? Mass of Al2(SO4)3 = grams

A 30.21 g sample of a compound that contains only carbon and hydrogen was combusted and yielded 105.18 g of CO₂ and 13.45 g of H₂O. The molecular mass of the compound is 202.2 amu. What is this compound's molecular formula? A) C₁₅H₂₂ B) C₈H₅ C) C₁₆H₁₀ D) C₁₆H₁₂

How many total ions are in 3.36 g of zinc bromate? O 1.72 x 1022 jons O 6.30 x 1021 ions O 2.09 x 1022 jons O 1.89 x 1022 ions