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ch 8-12 test

According to the Arrhenius concept, if were dissolved in water, it would act as

an acid

The name given to an aqueous solution of HBr is

hydrobromic acid.

Which one of the following is characteristic of a base?

has a slippery, soapy feel

Which one of the following is characteristic of an acid

produces in water

According to the Bronsted-Lowry definition,

a base is a proton acceptor

Identify the Bronsted-Lowry acid in the following reaction.

h20

The correct formula for sulfuric acid is

h2s04

the name of al(oh)3 is

aluminum hydroxide.

The conjugate acid of h20 is

h30+

the conjugate base of h20 is

oh-

Which of the following statements correctly describes the hydronium-hydroxide balance in the given solution?

In bases, [oh- ] is greater than [h30+ ].

For kw , the product of [ h30+] and [ oh-] is

1.0x10-14

What is the [h30+ ] in a solution with oh- ] =1x10-12m ?

1.0x10-2m

What is the [ OH-] in a solution that has a [H30+ ] = 1x10^-6m ?

1x10^6m

) A solution with a pH of 4 is

moderately acidic.

What is the pH of a solution with [h30+ ] = 10x^-9m ?

9.0

What is the pH of a solution with [OH- ] =1x10^-4m ?

10.0

The [h30+ ] of a solution with pH = 2.0 is

10x^-2m

Which of the following is the strongest acid?

HCI

A solution with [OH- ] of 5x10^-3 has a pH of ________

11.7

The [H30+ ] of a solution with pH = 9.7 is

2x10^-10m

Which of the following is correctly identified?

NaOH, strong base

Ammonium hydroxide is a weak base because

it dissociates only slightly in water.

An acid and base react to form a salt and water in a(n) ________ reaction.

Neutralization

In a neutralization reaction

an acid and a base react to form a salt and water.

Which of the following is the correctly balanced equation for the complete
neutralization of h3p04 wit ca(oh)2 ?

2h3p0+3ca(oh)2---> ca3p04)2+6h203

The neutralization reaction between al(oh)3 and nh03 produces the salt with the formula

al(n03)3

Which of the following is a neutralization reaction?

HN0+K0H-->h20 + KN03

The function of a buffer is to

maintain the pH of a solution.

The normal blood pH is about

7.4

In a buffer system of HF and its salt, NaF,

the HF neutralizes added base.

Which of the following is a buffer system?

h2c03 & khco3

Which of the following could be a buffer?

hf + naf

What is the name of the medical condition of an asthmatic patient with a blood pH of 7.30?

respiratory acidosis

If a condition of hypoventilation occurs, the blood pH of the patient is expected to

decrease

When hyperventilation (rapid breathing) causes a patient to exhale large amounts of co2 , the blood pH rises in a condition called

respiratory alkalosis.

25.0 mL of 0.212 M NaOH is neutralized by 13.6 mL of an HCl solution. The molarity of the NaOH solution is

0.390 M.

A 10.0 mL of 0.121 M is neutralized by 17.1 mL of KOH solution. The molarity of the KOH solution is

0.142 M.

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