Molarity and Concentration

As we dilute a solution.....

• The volume increases and the molarity (M) increases

• The volume increases and the molarity (M) decreases

• The volume decreases and the molarity (M) increases

• The volume decreases and the molarity (M) decreases

Tags

NGSS.HS-PS1-5

You can make a solution more concentrated by adding __________.

• solute

• solvent

• water

How do we make a dilution?

• Add more solute

• Remove solute

• Remove solvent

• Add more solvent

How many moles of NaCl are present in a solution with a molarity of 8.59M and 125 mL of solution?

• 07 gram

• 62.7 mol

• 1.07 mol

• 62.7 grams

If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?

• .188 M

• 3.78 M

• .304 M

• 1.76 M

What is the molarity of a solution made by adding 1.565 moles of PbNO₃ to 500 mL?

• 300. M

• 31.3 M

• 3.13 M

• 1.56 M

Molarity is ...

• grams of solute/deciliters of solvent.

• grams of solute/liters of solution.

• moles of solute/liters of solution.

• moles of solute/milliliters of solvent.

Tags

NGSS.HS-PS1-5

What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO₃ to a volume of 250 mL?

• 15.9 M

• 0.636 M

• 0.642 M

• 1.59 M

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

• 0.625 mol NaCl

• 625 mol NaCl

• 36.5 g NaCl

• 0.04 mol NaCl

What is the molarity of 0.0684 mol of NaCl in 3.8 L of solution?

• 0.018 M

• 0.001M

• 1.052 M

• 0.062 M