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Section 1

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All buffer solutions operate at a pH close to 7

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Chemistry Science

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6 years ago

Date created

Mar 1, 2020

Cards (25)

Section 1

(25 cards)

All buffer solutions operate at a pH close to 7

Front

False

Back

The reaction of an acid with a base will produce a salt. What other product

Front

Water

Back

According to Arrhenius's theory all acids increase the hydrogen ion concentration in water

Front

True

Back

Calculate the Oh- of a KOH solution which has a pH= 10.00

Front

4.0 x 10^-10

Back

What is conjugate acid of NH2-

Front

NH3

Back

All Bronsted-lowery bases must contain hydroxide

Front

False

Back

Nitric acid dissociates completely when dissolved in water

Front

True

Back

The conversion of the ferrous ion to ferric ion is an oxidation reaction

Front

True

Back

The conversion of Cr^3 to Cr^6+ is a reduction reaction

Front

False

Back

What is another name for a protonated water molecule

Front

hydronium ion

Back

What is the phof a 1.0 x10-4 M solution of KOH

Front

10.0

Back

What is the pH solution that has H3)+ =6.0 x10^-3

Front

2.22

Back

What is the conjugate base of H2SO4

Front

HSO4-

Back

For the following reaction, which statement is true;2Mg(s) +S2(g) = MgS(s)

Front

Mg is oxidized

Back

What one of the following substances is not a good oxidizing agent

Front

sodium metal

Back

Which of the following words best describes the general type of process occurring at the cathode of a voltaic cell

Front

Reduction

Back

What is the hydronium ion concentration of a solution with a ph of 6.0

Front

1 x10-6

Back

Hydrogen peroxide is a good reducing agent

Front

False

Back

Hydrochloric acid and the chloride ion form the main buffer system found in blood

Front

False

Back

What is the OH- of a solution which has a ph =10.95

Front

8.9 x10^-4 M

Back

Complete the following equation for the dissociation of butyric acid in water, so as to illustrate unambiguously that butyric acid is weak acid; Ch3Ch2CH2COOH(aq) +H2O(l)

Front

CH<sub>3<>

Back

What is the general term for processes such as the conversion of fluorine atoms to fluoride ions

Front

Reduction

Back

What term describes a reactant that removes electrons from another reactant

Front

oxidizing agent

Back

Give an example of a diprotic acid

Front

H2SO4

Back

What Is the hydronium ion concentration of pure water at 25 C

Front

1.0 x10^-7

Back