Molarity

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

• 1.6M

• 1.5M

• 2.4M

• 1.3M

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

• 0.2L

• 0.3L

• 0.4L

• 0.5L

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

• 2.3

• 1.3

• 1.1

• 2.1

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

• 103g

• 99g

• 110g

• 93g

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

• 1.3M

• 3.13M

• 2.13M

• 1.1M

Which solution is more concentrated?

Solution 1:

500 mL of water

100 g of salt

Solution 2:

500 mL of water

90 g of salt

• 1

• 2

• 1 and 2

• no answer

Which solution is more diluted?

Solution 1:

1000 mL of water

60g of salt

Solution 2:

500 mL of water

60 g of salt

• 2

• 1

• 1 and 2

• no

What is the molarity of 4 grams of sodium chloride in 3,800 mL of solution?

• 0.018

• 0..18

• 1

• 2

What is the molarity of a solution which contains 22.41 grams of NaCl in 50.0 mL of solution?

• 7.67M

• 7

• 2.3

• 6.9

How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl (MM = 58.45)?

• 36.5

• 35.5

• 34.5

• 33.5