How many moles of CO are required to produce 45.0 L of carbon dioxide at STP? 2 CO(g) + O2(g) —> 2 CO2(g)

Answer should written as X. XX moles CO

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?