Multiple ChoiceWhat is the molar mass (formula weight) of Ca(NO3)2? Provide your answer to two decimal places.59views
Multiple ChoiceHow many carbon atoms are present in 15.0 grams of graphite (pure carbon)? (Atomic mass of carbon = 12.01 g/mol)47views
Multiple ChoiceA compound has a molar mass of 180 g/mol and the following composition by mass: 40.0% C, 6.7% H, and 53.3% O. What is the molecular formula of the compound?55views
Multiple ChoiceWhich of the following is the correct molar mass of calcium carbonate (CaCO_3)?36views