Mole & Avogadro's constant questions

1. Deduce the total number of atoms and molecules in: (a) one molecule of methane. (b) one mole of methane. (c) 1.605 g of methane.2. What is the mass of: (a) One mole of sodium chloride, NaCl?(b) 2.00 x 10-2 mol of glucose, C6H12O6? (c) 3.62 mol of magnesium oxide, MgO?3. What is the mass of:(a) 6.02 x 1023 atoms of sulfur, S?(b) 3.01 x 1022 iron(II) ions, Fe2+?(c) 1.204 x 1024 molecules of water, H2O?

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