Question 21 pts

2,750 mL of a solution contains CsCl2 in enough butanol. If the molar concentration of CsCl2 is 0.375 M, the number of moles of CsCl2 in the solution is _____.

Group of answer choices

2.75 moles

5.72 moles

0.573 moles

1.03 moles

0.375 moles

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Question 3

1 pts

The _____ point is reached when a stoichiometric amount of the titrant has been added to the unknown solution for the reaction to go to completion.

Group of answer choices

equivalence

dissociation

concentration

inflection

end

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Question 4

1 pts

Given: CH3CH2COOH + H2O → CH3CH2COO- + H3O+

What volume of 0.500 M CH3CH2COOH is reacting with water to form 2.86 g of CH3CH2COO-?

Group of answer choices

0.0784 L

0.487 L

0.0118 L

0.784 L

0.0487 L

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Question 5

1 pts

_____ is the crystalline solid formed when an aqueous solution of barium chloride is reacted with an aqueous solution of sodium sulfate.

Group of answer choices

BaCl2

BaSO4

Na(OH)2

NaSO4

NaCl

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Question 6

1 pts

Given--complete ionic equation: 3Ag+(aq) + 3F-(aq) + 3Na+(aq) + PO43-(aq) → Ag3PO4(s) + 3Na+(aq) + 3F-(aq)

In the above complete ionic equation, the spectator ions are:

Group of answer choices

3Na+(aq) and 3Ag+(aq).

3Ag+(aq) and 3F-(aq).

(PO4)3-(aq) and 3F-(aq).

3Ag+(aq) and (PO4)3-(aq).

3F-(aq) and 3Na+(aq).

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Question 7

1 pts

Given: HCOOH + KOH→ HCOO-K+ + H2O

What mass of HCOO-K+ is formed when 383 mL of 0.250 M HCOOH is mixed with 885 mL of 0.524 M KOH?

Group of answer choices

48.5 g

8.05 g

885 g

32.0 g

1.06 g

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Question 8

1 pts

The mass of sodium hydroxide (NaOH) in 1.50 L of 0.200 M NaOH is _____ g.

Group of answer choices

0.200

40.0

4.00

21.0

12.0

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Question 9

1 pts

What is the concentration of OH - in 0.0345 M Ba(OH)2?

Group of answer choices

0.0690 M

0.0960 M

0.0345 M

0.0251 M

0.0543 M

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Question 10

1 pts

Which of the following is the net ionic equation for the reaction between the aqueous solutions of magnesium sulfate and sodium carbonate?

Group of answer choices

MgSO4(aq) + Na2CO3(aq) → MgCO3(s) + Na2SO4(s)

Na+(aq) + SO42-(aq)  → Na2SO4(s)

Mg2+(aq) + CO32-(aq)→ MgCO3(s)

MgSO4(aq) + Na2CO3(aq) → MgCO3(s) + Na+(aq) + SO42-(aq)

Mg2+(aq) + SO42-(aq) + Na+(aq) + CO32-(aq) → MgCO3(s) + Na+(aq) + SO42-(aq)

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Question 11

1 pts

Which of the following is a strong acid?

Group of answer choices

HClO

HCN

HClO4

HNO2

HF

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Question 12

1 pts

Which of the following elements has the greatest tendency to lose electrons?

Group of answer choices

Copper

Magnesium

Manganese

Cadmium

Potassium

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Question 13

1 pts

Which of the following is an example of a compound that is very soluble in water but that is essentially nonconductive?

Group of answer choices

Sulfuric acid

Sucrose

Barium hydroxide

Sodium bromide

Calcium chloride

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Question 14

1 pts

Given--complete ionic equation: 2Ag+(aq) + 2NO3-(aq) + 2K+(aq) + Cr2O72-(aq) → Ag2Cr2O7(s) + 2K+(aq) + 2NO3-(aq)

Convert the given equation into an overall chemical equation.

Group of answer choices

2Ag+(aq) + Cr2O72-(aq) → Ag2Cr2O7(s)

2AgNO3 (aq) + K2Cr2O7 (aq)→ Ag2Cr2O7(s) + 2KNO3(aq)

Ag2Cr2O7(s) + K2Cr2O7 (aq) →2AgNO3 (aq) + 2KNO3(aq)

2Ag+(aq) + 2NO3-(aq) + 2K+(aq) + Cr2O72-(aq) → 2K+(aq) + 2NO3-(aq)

2AgNO3 (aq) + 2KNO3(aq) → Ag2Cr2O7(s) + K2Cr2O7(aq)

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Question 15

1 pts

What volume of a 2.00 M sucrose stock solution is necessary to prepare 2,750 mL of a sucrose solution with molarity 5.34 M?

Group of answer choices

3.01 L

7.34 L

2.10 L

0.750 L

2.00 L

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Question 16

1 pts

Given: 2C6H5COOH + Na2CO3→2C6H5COONa + H2O + CO2

If 775 mL of 0.507 M C6H5COOH solution is used in the reaction above, the mass of carbon dioxide formed is _____ g.

Group of answer choices

8.64

5.44

3.55

6.88

5.33

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Question 17

1 pts

What is the concentration of Ca2+ in 0.0152 M Ca3(NO3)2?

Group of answer choices

0.0304 M

0.0152 M

0.304 M

0.0456 M

0.456 M

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Question 18

1 pts

Which of the following is an example of a neutralization reaction?

Group of answer choices

MgCl2+2NaNO3→ Mg(NO3)2+2NaCl

BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2Na+(aq) + 2Cl-(aq)

2C6H6COOH + Na2CO3(aq) → 2C6H6COO-Na+(aq) + H2O + CO2(g)

2Na+ + S2-→ Na2S(s)

HI(aq) + KOH(aq) →KI(s) + H2O(l)

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Question 19

1 pts

Which of the following is a strong electrolyte?

Group of answer choices

Ferrous sulfate

2-propanol

Acetone

Formaldehyde

Ethanol

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Question 20

1 pts

According to the Arrhenius definition of acids and bases, an acid is a substance:

Group of answer choices

that dissolves in water to produce H+ ions.

produced by the reaction of two bases.

that dissolves in water to produce OH- ions.

that has a greater OH- ion concentration than H+ ion.

that accept a proton.