Molarity Calculations

Sea water contains roughly 28.0 g of NaCl per 1 liter. What is the molarity of sodium chloride in sea water?

What is the molarity of 245.0 g of H₂SO₄ dissolved in 1.000 L of solution?

What is the molarity of 5.30 g of Na₂CO₃ dissolved in 400.0 mL solution?

How many moles of Na₂CO₃ are in 10.0 mL of a 2.0 M solution?

What volume (in mL) of 18.0 M H₂SO₄ is needed to contain 2.45 g H₂SO₄?