Suppose you have a 100 of 0.1 potassium chloride to make it 0.2 M you need: A add 0.1 mole of potassium chloride B evaporate 50 mL of solution C evaporate 50 mL of water D add 100 ml of 0.1 potassium chloride

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?