A molecule is found to contain 64.27% by mass C, 7.191% by mass H, and 28.54% by mass O. It’s molar mass is 168 g.  What is the molecular formula for this molecule? C  H  O

A molecular compound contains carbon, hydrogen, and oxygen atoms in its formula. A chemical analysis shows the mass percentage of the compound as below: 40.0% C, 6.7% H, and 53.3% O The molar mass of the compound is 60.0 g/mol. What is the molecular formula for this compound?

You are working in a space station laboratory that is orbiting the star system Geddy Prime. Your lab is analyzing the materials found on a planet close to the main red dwarf star. You find a compound made entirely of C, H, and O. When 23.21 g of this compound are burned, you recover 35.21 g of CO2, and 7.21 g of H2 What is the empirical formula of this compound?

What mass of carbon dioxide, CO₂, contains the same number of molecules as 3.00 g of trichlorofluoromethane, CCI3F? The molar mass of CCl3F is 137.36 g mol-1. O 0.961 g O 9.37 g O 1.04 g O 0.106 g