Provide complete answers to the following questions. Show all work for full cred

Question

Provide complete answers to the following questions. Show all work for full credit.1.Calculate themolar mass of CuSO4· 5H2O. Hydrated ionic compounds are ionic compounds with the stated number of watermolecules included into the interstitial sites of the ionic lattice.In hydrated compounds,a specific number of water molecules becomes part of thelattice, as a result youmust account for the indicated molecules of waterin calculating thechemical formula.

2.How many moles are in 1.5 grams of CuSO4· 5H2O?

3.How many moles of ammonia are present in 5 mL of a 15 M NH3solution?

4.Which is the limiting reagent in the reaction between Copper sulfate pentahydrateand ammonia?

Explanation / Answer

Q1.

Molar mass = CuSO4 + 5*H2O

MW CuSO4 = 159.609 g/mol

MW of CuSO4*5H2O = 159.609 + 5*18 = 249.609 g/mol

Q2.

find moles of CuSO4 in m = 1.5 g

mol = mass/MW = 1.5/249.609 = 0.00600939 mol of CusO4*5H2O

Q3.

find moles of ammonia in 5 mL

mol = MV = (15)(15*10^-3) = 0.225 mol of NH3

Q4.

limiting reactant must be that species with the lowest ratio

clearly, CusO4 = 0.00600939 mol is the smalelst quantitiy

vs 0.225 mol of NH3

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