Avogadro’s Number and the Mole (Section)(a) What

Chapter , Problem 37E

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Problem 37E

Avogadro’s Number and the Mole (Section)

(a)        What is the mass, in grams, of 2.50 * 10-3 mol of ammonium phosphate?

(b)        How many moles of chloride ions are in 0.2550 g of aluminium chloride?

(c)        What is the mass, in grams, of 7.70 * 1020 molecules of caffeine, C8H10N4O2?

(d)        What is the molar mass of cholesterol if 0.00105 mol has a mass of 0.406 g?

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