Question

Use the periodic table in the tools bar to answer these questions. How many moles of AgNO3 are present in 1.50 L of a 0.050 M solution?

Answer 1

How many moles of AgNO3 are present in 1.50 L of a 0.050 M solution?

✔ 0.075 mol

Calculate the mass of ammonium sulfide (NH4)2S in 3.00 L of a 0.0200 M solution.

✔ 4.09 g (NH4)2S

A chemist wants a 0.100 M solution of NaOH. She has 0.0550 mol NaOH available. What volume of solution is needed to make the mixture?

✔ 0.550 L

Answer 2

m = Solute moles/liters solution moles of solute =

m. Liters of solution moles of solute = 0050 m x 1.50 L = 0075 moles of AgNo3