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Chemistry Quiz

Total questions: 46

Worksheet time: 25mins

Name
Class
Date
1.

The substance to be assayed

a)

Titrant

b)

Analyte

c)

End point

d)

Sample

2.

The substance of known concentration

a)

Titrant

b)

Analyte

c)

End point

d)

Solution

3.

Compute for the plasma concentration in mmHg of the patient if the pH is 7.3 and the bicarbonate levels is 15 mmol/L.

a)

74.50mmoL

b)

24.53mmoL

c)

31.24mmoL

d)

None of the above

4.

Molecular weight of potassium biphtalate

a)

208 g/mol

b)

202 g/mol

c)

206 g/mol

d)

204 g/mol

5.

All of the following are acids; EXCEPT

a)

HCl

b)

H2SO4

c)

Na2CO3

d)

None of the above

6.

Substance being assayed in Experiment 11

a)

Milk of Magnesia

b)

Sodium Hydroxide

c)

Sulfuric Acid

d)

Your mom

7.

Substance being assayed in Experiment 10

a)

Milk of Magnesia

b)

Sulfuric Acid

c)

Sodium Hydroxide

d)

Your mom

8.

Substance being assayed in Experiment 9

a)

Milk of Magnesia

b)

Sulfuric Acid

c)

Sodium Hydroxide

d)

Your mom

9.

Color of Methyl Red in base

a)

Red

b)

Yellow

c)

Colorless

d)

Pink

10.

An inorganic compound that changes color to signal that a chemical reaction has occured

a)

Indicator

b)

Analyte

c)

Buffer

d)

Titrant

11.

Defined as an arterial blood pH <7.35

a)

Alkalemia

b)

Acidemia

c)

Hematoma

d)

Edema

12.

Proton Donor

a)

Base

b)

Acid

c)

Solutions

d)

Pit Latrine

13.

Electron Acceptor

a)

Base

b)

Acid

c)

Solutions

d)

Pit Latrine

14.

defined as arterial blood pH >7.45

a)

Alkalemia

b)

Acidemia

c)

Hematoma

d)

Edema

15.

Which of the following indicators should be use when dealing with strong acids?

a)

Methyl red

b)

Methyl orange

c)

Phenolphtalein

d)

All of the above

16.

Titrant used in Experiment 10

a)

Sulfuric Acid

b)

Sodium Hydroxide

c)

Na2CO3

d)

PCO3

17.

Endpoint in Experiment 9

a)

Pink

b)

Yellow

c)

24.35 m/moL

d)

Primary Standard

18.

Endpoint of Experiment 10

a)

Pink

b)

Yellow

c)

Colorless

d)

None of the above

19.

Method of Analysis used in Experiment 11

a)

Direct Acidimetry

b)

Direct Alkalimetry

c)

Residual Titration

d)

MOM

20.

A mixture of a weak acid and a salt of its conjugate base that resists change in pH when strong acid or base is added.

a)

Analyte

b)

Titrant

c)

Buffer

d)

Indicator

21.

Analysis of a base using an accurately measured volume of acid

a)

Acidimetry

b)

Alkalimetry

c)

Residual

d)

Treaty of Paris

22.

Analysis of an acid using an accurately measured volume of base

a)

Acidimetry

b)

Alkalimetry

c)

Residual

d)

Treaty of Paris

23.

is the determination of the volume of a solution of known concentration required to react with a given amount of a substance to be analyzed

a)

Redox Reaction

b)

Volumetric Analysis

c)

Titration

d)

Residual

24.

A point when an indicator shows the amount of reactant necessary for a complete reaction has been added to a solution

a)

End point

b)

Stoichiometric point

c)

Pllineal point

d)

There's no point.

25.

Phenolphtalein in Acid

a)

Blue

b)

Red

c)

Colorless

d)

Yellow

26.

Type of titrant used in Experiment 11

a)

Secondary Standard

b)

Primary Standard

c)

Tertiary Standard

d)

Wala ka kaabot sa iya standard.

27.

Indicator used in Experiment 11

a)

Methyl Orange

b)

Methyl red

c)

Phenolphtalein

d)

Isopropanol

28.

Substances that contain Hydrogen

a)

Hydroxides

b)

Acids

c)

Bases

d)

Indicator

29.

1: You should add acid to water

2: 5.0 g of milk of magnesia was used in Experiment 11

a)

Statement 1 is true

b)

Statement 2 is true

c)

All statements are true

d)

All statements are false

30.

Dissolve _____ g of sodium hydroxide pellets in ____ mL of _________. (Experiment 9)

a)

12.25, 100, distilled water

b)

10.25, 75, carbon dioxide-free water

c)

11.25, 100, carbon dioxide-free water

d)

None of the above

31.

You would not believe your eyes...

a)

If 10 million fireflies.

b)

lit up the world as I fell asleep

c)

I'd like to make myself believe

d)

as planet earth turns slowly

32.

Technique used for measuring the concentration of solute particles that contribute to osmotic pressure of the solution.

a)

Osmometry

b)

Osmosis

c)

Osamis

d)

Optometry

33.

The volume of an ideal gas at constant temperature varies inversely with the pressure exerted on it.

a)

Boyle's Law

b)

Dalton's Law

c)

Henry's Law

d)

Gay-Lussac's Law

34.

It is a colorless and harmless gas. It is generally used as respiratory stimulant with 50.7% oxygen.

a)

Carbon Dioxide

b)

Oxygen

c)

Fluoride

d)

Xenon

35.

A condition where a patient suffers from excessive amounts of Potassium

a)

Hypokalemia

b)

Hyperkalemia

c)

Hypoglycemia

d)

Hyperglycemia

36.

Acid-base balanced pH

a)

7.35 to 7.45

b)

7.30 to 7.50

c)

7.34 to 7.46

d)

7.10 to 7.30

37.

The products of a neutralization reaction

a)

Salt

b)

Water

c)

None of the above

d)

All of the above

38.

This is the process based on the formation of a complex substance in the course of the analysis.

a)

Complex formation

b)

Oxidation-reduction

c)

Precipitation

d)

Neutralization

39.

In this method of analysis, the solution of the substance in the sample is titrated with a standard solution of precipitating agent in the presence of a suitable indicator.

a)

Precipitation

b)

Neutralization

c)

Complex Formation

d)

Oxidation-Reduction

40.

in this method of analysis, standard solutions of oxidizing agents and of reducing agents take the place of acid and alkali solutions of the neutralization process.

a)

Oxidation-reduction

b)

Complex Formation

c)

Precipitation

d)

Neutralization

41.

term used whenever the determination of a substance is being conducted

a)

Neutralization

b)

Standardization

c)

Volumetric Analysis

d)

Titration

42.

Most common substance used in preparing a standard solution of a base

a)

Sodium Hydroxide

b)

Sodium Carbonate

c)

Sodium Bicarbonate

d)

Potassium Biphtalate

43.

Malachite green in Base

a)

Green

b)

Yellow

c)

Red

d)

Colorless

44.

analysis is conducted by introducing a standard solution gradually from a burette into a solution of a substance being assayed.

a)

Direct Titration

b)

Back Titration

c)

Residual Titration

d)

Oxidation-reduction

45.

the theoretical point wherein equivalent amounts of each substance have reacted.

a)

Stoichiometric point

b)

End point

c)

Indicator

d)

Lancet

46.

Which are the primary components of titration

a)

Analyte

b)

Titrant

c)

Indicator

d)

All of the above

e)

Titrant and Indicator only

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