Acid-Base Summary

Presentation

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Science

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10th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS1-2, MS-PS1-1

Standards-aligned

Suzanna Magnuson

Used 219+ times

FREE Resource

5 Slides • 11 Questions

Acid-Base Summary

Acids

Produce H₃O⁺ ions in solution
Tend to have "H" at the beginning of formulas
pH lower than 7
Taste sour
Corrosive: can cause chemical burns
Examples: Citrus (HC₆H₇O₇), stomach acid (HCl), vinegar (HC₂H₃O₂)

Bases

Produce OH^- ions in solution
Tend to have "OH" at the end of formulas
pH greater than 7
Taste bitter; feel slippery
Corrosive: can cause chemical burns
Examples: Lye (NaOH), Antacid (Ca(OH)₂), Ammonia (NH₄OH)

Neutral Substances

Have equal H₃O⁺ and OH^- ions
pH equal to 7
Examples: Water (H₂O), Salt (NaCl), Sugar (C₁₂H₂₂O₁₁)

Multiple Choice

A sugar solution has a pH of 7. This means the sugar solution is:

acidic

basic

neutral

Fill in the Blanks

The

Type answer...

scale measures the acidity of substances.

Multiple Choice

Which of these is a property of acidic solutions?

they taste sour

they feel slippery

they are in many cleaning products

they taste bitter

Multiple Choice

Four substances were tested for pH: lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Rank these 4 substances from most basic to most acidic?

lemon juice, milk, baking soda, bleach

bleach, baking soda, milk, lemon juice

milk, lemon juice, baking soda, bleach

baking soda, bleach, lemon juice, milk

Multiple Choice

A wasp sting injects an alkaline substance into your skin. What could you use to neutralize it?

baking soda (pH = 8)

vinegar (pH = 2.5)

water (pH = 7)

Multiple Choice

A bee sting injects an acidic substance into your skin. What could you use to neutralize it?

baking soda (pH = 8)

vinegar (pH = 2.5)

water (pH = 7)

Multiple Choice

Is HNO₃ an acid or base?

Acid

Base

Multiple Choice

KOH will release which ion?

OH-

H+

OH+

H-

Multiple Choice

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?

strongly acidic

slightly acidic

strongly basic

slightly basic

Multiple Choice

Human blood has a pH between 7.35 and 7.45. What would you expect to see for the concentration of each ion?

very high H₃O⁺and very low OH^-

slightly higher H₃O⁺and slightly lower OH^-

very high OH^-and very low H₃O⁺

slightly higher OH^-and slightly lower H₃O⁺

Equal concentrations of OH^- and H₃O⁺

Multiple Choice

An unknown substance was tested and found to have an extremely high concentration of hydroxide ions, OH^-. and very low concentration of hydronium ions, H₃O⁺. Which pH would make the most sense?

pH = 2

pH = 6

pH = 8

pH = 12

Acid-Base Summary

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