Molarity and Dilutions

If 1.2 moles of CaCO₃ in 1.22 L of water, what is the concentration?

• 0.98 M

• 1.5 M

• 1.0 L

I have 340 mL of a 0.5 M NaBr solution. What will the concentration be if I add 560 mL water to it?

• .2 M

• 0.8 M

• .3 M

What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300.0 mL of 2.00 M NaOH by dilution?

• 60.0 mL

• 1500 mL

• 0.0667 mL

How many moles of NaCl are in 0.125 L of a 8.59 M solution?

• 1.07 mol
• 68.7 mol

How many grams of solute are dissolved in 0.125 L of 5.00 M NaCl?

• 0.625 g

• 36.3 g

• 0.0108 g

• 58.0 g