[banana89]

1)  75.0 mL of an AgNO₃ solution reacts with enough Cu to produce 0.250 g of Ag by single displacement.  What is the molarity of the initial AgNO₃ solution if Cu(NO₃₎₂ is the other product.

2)  Determine the number of grams of solute needed to make a 4.50 m solution of H₂SO₄ in 1.00 kg H₂O.

I can't figure out where to start with either of these.  I know that M=mol/L and m=mol/kg, but I'm not sure what to do with all the information given here.  Help please?  Thanks!

[chiralic]

Info for your question 1

For your question 2, I suggest you two links: LINK 1 and LINK 2