Unit 4 soln and Acids qz 2

A saturated solution of calcium carbonate was found to contain 0.0198 g of calcium carbonate (CaCO₃) dissolved in 2000 g of solution. Calculate the concentration of calcium carbonate in the solution in parts per million (ppm).

• 9.90 ppm

• 8.90 ppm

• 7.35 ppm

• 5.63 ppm

What is the concentration of a solution in parts per million if 0.02 grams of NaCl is dissolved in 1000 grams of water?

• 2 ppm

• 20 ppm

• 200 pm

• 0.2 ppm

How many liters would you need to make a 1 M solution if you have 6 mol of Sodium Hydroxide? 

• 2
• 3
• 4
• 6 

Determine the molarity of 2.25 mole of sulfuric acid, H₂SO₄, dissolved in 725 mL of solution.

• 322.2 M
• 3.1 M
• 0.32 M
• 2.25 M

When acids react with metals, they produce hydrogen gas and salt.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following are properties of acids?

• They conduct electricity when dissolved in water

• They taste sour

• They react with metals to produce hydrogen gas

• All of the answer choices are correct

Which of the following could you use to determine if a substance is an acid or a base?

• Litmus Paper

• pH Paper

• Red Cabbage Juice

• All of the above

What is the pH range of a base?

• 0-6

• 8-14

• 0-14

• 0-16

What is the pH range of a acid?

• 0-6

• 8-14

• 0-14

• 0-16

Bleach has a pH of 11. What is this substance on the pH scale?

• acid

• base

• neutral

• Negative