What mass of S8 (molar mass: 256.52 g/mol) is needed to produce 45.0g of SO 3 (80.06 g/mol) ?

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m

What is the chemical formula for dihydrogen monoxide