2 NABr + Ca(OH)2 = CaBr2 + 2 NaOH How many moles of NaBr are required to react with 187.34 g of calcium hydroxide?

How many miles of water are produced if 5.43 mol pbo2 are consumed

What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.