Unit 6 Solutions acids and bases review

Which of the following is the weakest base?

• oven cleaner - 13.5

• lemon juice - 2.5

• soap - 10

• blood - 7.4

Which of the following is the strongest base?

• oven cleaner - 13.5

• lemon juice - 2.5

• soap - 10

• blood - 7.4

Solutions that have more OH– ions than H+ ions are

• acids

• bases

• enzymes

• neutral

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

At 30'C, which substance has the lowest solubility?

• KNO3

• KBr

• NaCl

• Yb2(SO4)3

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

At which temperature do KBr and KNO3 have the same solubility?

• 60

• 55

• 50

• Never

Tags

NGSS.HS-PS1-5

Determine the solubility for the substances at 55'C and arrange them in order from lowest to highest solubility.

• NaCl, NH4Cl, KBr, NaNO3

• NaCl, NH4Cl, NaNO3, KBr

• NH4Cl, NaCl, NaNO3, KBr

• NaNO3, KBr, NH4Cl, NaCl

Tags

NGSS.HS-PS1-5

Identify how many grams of KNO3 is required to make a saturated solution at 40'C.

• 50 g

• 45 g

• 60 g

• 33 g

Tags

NGSS.HS-PS1-5

If the [H+] of a solution is 1 x 10^-2 mol/L the pH is

• 2
• 12
• -2
• 1

Limes have a [H₃O⁺] of 1.3 x 10^-2 mol/L.  Their pOH is

• 1.89
• 12.11
• 1.03
• 12.97