If the [OH^-] of a solution is 2.7 x 10^-4 M, the pOH of the solution is

• 10.44

• 1.00

• 3.57

• -4.43

When the hydrogen ion concentration goes up, the pH ___

• gets lower

• stays the same

• gets higher

• goes toward 7

The pH of a solution is 8.43. What is the [H⁺] concentration?

• 3.7 x 10 ^-9

• 1.0 x 10^-8.43

• 2.7 x 10^-6

• 1.0 x 10^-14

If the [H⁺] of a solution is 6.8 x 10^-8 M, the pH is

• 7.17

• 3.2 x 10^-5

• 7.2

• 7.62

The table shows the pH of several solutions. Which solution has the greatest concentration (amount) of H⁺ ions?

• vinegar

• milk

• water

• bleach

Answer explanation

Remember H⁺ is another name for an acid. So, another way to ask this would be; which of these is the strongest acid?

Match the following terms to the correct definition

• Unsaturated

• A solution containing less than the maximum solute

• Supersaturated

• A solution that is holding the maximum solute at a given temp

• Solute

• A solution containing more than the maximum amount

• Solvent

• The substance that is being dissolved

• Saturated

• The substance that is doing the dissolving

Match the following terms to the correct definition

• Bronstead-Lowry Base

• A substance that accepts a pair of electrons

• Arrhenius Base

• A substance that produces H+ ions in solution

• Arrhenius Acid

• A substance that donates a proton

• Bronstead-Lowry Acid

• A substance that produces OH- ions in solution

• Lewis Acid

• A substance that accepts a proton

How many grams are soluble in 100 g of water at 100 ºC?

• 300 grams

• 250 grams

• 100 grams

• 50 grams

Tags

NGSS.HS-PS3-4

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

• 0.018 M
• 0.018 mol
• 1.052 M
• 1.052 mol

For a solution at 25^oC, pH + pOH =

• 7

• 14

• 1.0 x 10^-14

• -log (1.0 x 10 ^-14)