Acids and Bases Quiz

Which of the following statements is true about acids?

• Acids taste bitter.

• Acids are slippery.

• The pH of an acid is below 7.

• The pH of an acid is above 7.

What is the pH of a neutral substance?

• Below 7

• 7

• Above 7

• 14

What is the pH of 0.005 M HCl? (Hint: pH = -log [H⁺])

• 2.3

• 3.0

• 2.7

• 4.0

What does a buffer do?

• Increases the pH of a solution

• Decreases the pH of a solution

• Maintains the pH of a solution

• Neutralizes a solution

In general, what does an acid + base reaction produce?

• Salt and water

• Acid and water

• Base and salt

• Acid and base

How many grams are in 0.67 moles of carbon dioxide?

• 29.4 grams

• 44.0 grams

• 29.5 grams

• 30.0 grams

How many atoms are in 0.15 moles of lead?

• 9.03 x 10^22 atoms

• 1.20 x 10^23 atoms

• 8.02 x 10^22 atoms

• 7.50 x 10^22 atoms

How many atoms are in 450 grams of water?

• 1.50 x 10^25 atoms

• 2.50 x 10^25 atoms

• 3.00 x 10^25 atoms

• 4.50 x 10^25 atoms

How many liters at STP are in 0.49 moles of oxygen gas?

• 11.0 liters

• 12.0 liters

• 10.9 liters

• 11.5 liters

Identify C as a particle known as an: Ion, Atom, Compound, Molecule.

• Ion

• Atom

• Compound

• Molecule

Tags

NGSS.MS-PS1-1