Free Printable Water, solutions, acids & bases

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Water, solutions, acids & bases

Total questions: 41

Worksheet time: 44mins

Name

Class

Date

An extremely strong base would have a pH of:

A hydronium ion is like a _____molecule with an extra hydrogen atom.

Acid

Base

Water

Vinegar

What is a property of bases?

Slippery touch

Sour taste

Ability to dissolve metal

Ability to form hydronium ions

How do acidic solutions taste?

Delicious

Sweet

Bitter

Sour

Based on the solubility chart, which of the listed salts is the most soluble at 40°C?

KCl

KClO₃

KNO₃

Pb(NO₃)₂

Which of the following would NOT be a way to speed up the rate of solubility of rock salt?

stir it

heat the water

crush the salt

cool the water

An extremely strong acid would have a pH of...

A neutral substance would have pH of...

a substance being dissolved, usually the part of the solution in the lesser amount

solvent

solute

solubility

concentration

10.

a measure of the hydronium ion concentration of a solution

concentration

conductivity

solubility curve

11.

NaOH may be found in drain cleaners and as a component of soaps. Is NaOH an acid or a base?

Acid

Base

Neither (Neutral)

12.

HCl is found in household products, including some toilet bowl cleaners. Is HCl an acid or a base?

Acid

Base

Neither (Neutral)

13.

How many grams of KCl will dissolve in 100mL of water at 75^oC?

35 grams

40 grams

45 grams

50 grams

14.

An arrhenius acid

produces hydroxide ions in a solution

is a proton donor

produces hydrogen ions in a solution

is a proton acceptor

15.

An arrhenius base

produces hydroxide ions in a solution

is a proton donor

produces hydrogen ions in a solution

is a proton acceptor

16.

A bronsted lowry base

produces hydroxide ions in a solution

is a is a hydrogen ion donor

produces hydrogen ions in a solution

is a hydrogen ion acceptor

17.

A bronsted lowry acid

produces hydroxide ions in a solution

is a proton donor

produces hydrogen ions in a solution

is a proton acceptor

18.

Water can act as both an acid and a base according to the bronsted lowry model. This means water is

neutral

conjugate

ionic

amphoteric

19.

Neutralization is a reaction between a(n)

acid and a base.

acid and a metal.

base and a salt.

salt and water.

20.

What word describes when water is attracted to other substances?

cohesion

adhesion

capillary action

surface tension

21.

Which end of the water molecule has a slightly positive charge?

the oxygen end

the hydrogen end

both ends are slightly positive

neither end is positive

22.

The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form

less polar

more polar

less dense

more dense

23.

Water has a positive charge and a negative charge. This makes water ________

negative

positive

polar

weird

24.

Water can dissolve many things so it is called the .....

wonderful water

cohesion

liquid

universal solvent

25.

Solubility refers to the ____ of solute that can dissolve in a certain volume or mass of solvent, at a certain temperature.

Volume

Proportion

Mass

Particles

26.

What is the formula for molarity?

moles/grams

moles/kilograms

moles/milliliters

moles/liters

27.

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

-2

28.

If the pH of a solution is 5 the [H+] is

1.0 x 10⁵ M

1.0 x 10⁹ M

5.0 x 10¹ M

1.0 x 10^-5 M

29.

If the pH of a solution is 5.6 the pOH is

6.5

12.4

8.4

5.6

30.

In the reaction represented by $H_2C_2O_4+CH_3NH_2\ \ \rightarrow\ \ HC_2O_4^-+CH_3NH_3^+,$ Which of these is a conjugate acid to the base $CH_3NH_2$ ?

None

$H_2C_2O_4$

$CH_2NH_3^+$

$HC_2O_4^-$

31.

A strong base in a water solution

is a weak electrolyte

produces many H⁺ ions

will not dissolve

completely dissociates into ions.

32.

What is the name of the acid with the formula HCl?

Chloric Acid

Chlorous Acid

Hypochloric Acid

Hydrochloric Acid

33.

What is the formula for nitric acid?

HNO₃

HNO₂

HNO₄

34.

What is the formula for phosphoric acid?

HPO₃

H₃PO₄

H₂PO₄

H₃PO₃

35.

What is the formula for nitrous acid?

HNO₃

HNO₄

HNO₂

HNO

36.

According to Lewis acid-base theory, a Lewis base is.....

an electron pair acceptor

an electron pair donor

an oxidising agent

a reducing agent

37.

HSO₄^-(aq)+H₂O(l) → H₃O⁺(aq)+SO₄^2-(aq)
Identify the Acid in the above reaction.

HSO₄^-

H₂O

H₃O⁺

SO₄^2-

38.

Since "like dissolves like", water and oil will not mix because

both of them are polar

both of them are nonpolar

oil is polar and water is nonpolar

oil is nonpolar and water is polar

39.

What is the molarity of 3 mole of hydrochloric acid in 3 L of water.

40.

____________ is the process whereby particles of a solvent completely surround the particles of a solute, disperse them throughout the solvent particles, and hold them in solution.

solvation

immisciblation

dissolution

saturation

41.

The separation of ions that occurs when an ionic compound dissolves is

ionization

dissociation

electronegativity

spectation

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Water, solutions, acids & bases

Total questions: 41

Worksheet time: 44mins

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