U10.5. Molarity 1

Molar mass of NaOH is ______________________

• 40 grams/mol

• 50 grams/mol

• 45 grams/mol

• 38 grams/nol

Which sweet tea would you expect to taste the sweetest?

• 1M
• 3M
• 3.1M
• 2.5M

True or False? The higher the concentration of a solution the less solutes it has in it.

• True
• False

Molarity is measured in _____.

• moles per g.

• mols per L.

• moles per mm.

• moles per mL.

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

• 1074 mol
• 0.069 mol
• 1.07 mol
• 62.7 mol

What is the molarity of a solution containing 4 moles of KCl in 2.5 L of solution?

• 1.6 M

• 0.63 M

• 10 M

• 2.6 M

What volume is needed to make a 2.45 M solution of KCl using 0.50 mol of KCl?

• 4.9 L

• 0.20 L

• 1.2 L

How many moles of NaCl are needed to make 5.25 L of a 0.25 M solution?

• 1.3 mol

• 21 mol

• 0.048 mol

How many grams of KCl would be dissolved in 5.50 L of a 0.250 M solution of KCl? *molar mass of KCl = 74.55 g/mol*

• 1.48 g

• 103 g

• 1640 g

• 3.39 g

What is the molarity of a solution made by adding 1.565 moles of PbNO₃ to 0.5 L?

• 300. M

• 31.3 M

• 3.13 M

• 1.56 M