SOMEONE HELP chemistry

Calculate the molar masses of H2O and CuSO4 (Relative atomic masses: H=1, O=16, S=32, Cu=64)Calculate the mass of water driven off, and the mass of anhydrous copper(II) sulfate formed in your experimentCalculate the number of moles of anhydrous copper(II) sulfate formedCalculate the number of moles of water driven offCalculate how many moles of water would have been driven off if 1 mole of anhydrous copper(II) sulfate had been formedWrite down the formula for hydrated copper(II) sulfate.

AMSWER IN THE ATTACHMENT.

3-isopentane; 3-methylbutane, and 1,2-methylpropane do not meet iupac rules, so they are wrong names.the only valid name onthe list is 2-methylbutane, which is the same isopentane.this is its formula:                   ch2                    |ch3 - ch - ch2 - ch3answer: 2-methylbutane