How many moles of Co2+ are present in 0.500 L of a 0.450 M solution of CoI2?

A) 0.950 moles B) 0.500 moles C) 1.10 moles D) 0.525 moles E) 0.225 moles A) 0.950 moles B) 0.500 moles C) 1.10 moles D) 0.525 moles E) 0.225 moles

When 220.mL of 1.50 × 10-4 M hydrochloric acid is added to 135 mL of 1.75 × 10-4 M Mg(OH)2,the resulting solution will be

A) acidic. B) basic C) neutral. D) It is impossible to tell from the information given. A) acidic. B) basic C) neutral. D) It is impossible to tell from the information given.

What reagent could be used to separate Br- from CH3CO2- when added to an aqueous solution containing both?

A) AgNO3(aq) B) Ca(OH)2(aq) C) CuSO4(aq) D) NaBr(aq) A) AgNO3(aq) B) Ca(OH)2(aq) C) CuSO4(aq) D) NaBr(aq)

How many ions are present in 30.0 mL of 0.600 M H2CO3 solution?

A) 3.25 × 1022 ions B) 2.17 × 1022 ions C) 1.08 × 1022 ions D) 5.42 × 1022 ions E) 3.61 × 1021 ions A) 3.25 × 1022 ions B) 2.17 × 1022 ions C) 1.08 × 1022 ions D) 5.42 × 1022 ions E) 3.61 × 1021 ions

What mass (in g)of AgCl is formed from the reaction of 75.0 mL of a 0.078 M AgC2H3O2 solution with 55.0 mL of 0.109 M MgCl2 solution? 2 AgC2H3O2(aq)+ MgCl2(aq)→ 2 AgCl(s)+ Mg(C2H3O2)2(aq)

A) 0.838 g B) 1.72 g C) 0.859 g D) 2.56 g E) 1.70 g A) 0.838 g B) 1.72 g C) 0.859 g D) 2.56 g E) 1.70 g

A solution is prepared by adding 1.70 g of solid NaCl to 50.0 mL of 0.100 M CaCl2.What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.

A) 0.782 B) 0.682 C) 0.134 D) 0.234 E) 0.582 A) 0.782 B) 0.682 C) 0.134 D) 0.234 E) 0.582

Exam 4: Chemical Quantities and Aqueous Reactions

Balance the chemical equation given below,and determine the number of moles of iodine that react with 40.0 g of aluminum. ___ Al(s)+ _ I₂(s)→ ___ Al₂I₆(s)

(Multiple Choice)

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Question 221

How many moles of Co²⁺ are present in 0.500 L of a 0.450 M solution of CoI₂?

(Multiple Choice)

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Question 222

When dissolved in water,KOH behaves as

(Multiple Choice)

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Question 223

According to the following reaction,how many moles of Fe(OH)₂ can form from 175.0 mL of 0.227 M LiOH solution? Assume that there is excess FeCl₂. FeCl₂(aq)+ 2 LiOH(aq)→ Fe(OH)₂(s)+ 2 LiCl(aq)

(Multiple Choice)

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Question 224

According to the following reaction,how many grams of sulfur are formed when 37.4 g of water are formed? 2 H₂S(g)+ SO₂(g)→ 3 S(s)+ 2 H₂O(l)

(Multiple Choice)

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Question 225

When 220.mL of 1.50 × 10^-4M hydrochloric acid is added to 135 mL of 1.75 × 10^-4 M Mg(OH)₂,the resulting solution will be

(Multiple Choice)

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Question 226

Define a greenhouse gas.

(Multiple Choice)

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Question 227

According to the following reaction,what mass of PbCl₂ can form from 235 mL of 0.110 M KCl solution? Assume that there is excess Pb(NO₃)₂. 2 KCl(aq)+ Pb(NO₃)₂(aq)→ PbCl₂(s)+ 2 KNO₃(aq)

(Multiple Choice)

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Question 228

Which of the following compounds is soluble in water?

(Multiple Choice)

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Question 229

What reagent could be used to separate Br^- from CH₃CO₂^-when added to an aqueous solution containing both?

(Multiple Choice)

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Question 230

According to the following reaction,what volume of 0.244 M KCl solution is required to react exactly with 50.0 mL of 0.210 M Pb(NO₃)₂ solution? 2 KCl(aq)+ Pb(NO₃)₂(aq)→ PbCl₂(s)+ 2 KNO₃(aq)

(Multiple Choice)

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Question 231

How many ions are present in 30.0 mL of 0.600 M H₂CO₃ solution?

(Multiple Choice)

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Question 232

What mass (in g)of AgCl is formed from the reaction of 75.0 mL of a 0.078 M AgC₂H₃O₂ solution with 55.0 mL of 0.109 M MgCl₂ solution? 2 AgC₂H₃O₂(aq)+ MgCl₂(aq)→ 2 AgCl(s)+ Mg(C₂H₃O₂)₂(aq)

(Multiple Choice)

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Question 233

Dinitrogen monoxide gas decomposes to form nitrogen gas and oxygen gas.How many grams of oxygen are formed when 10.0 g of dinitrogen monoxide decomposes?

(Multiple Choice)

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Question 234

Give the spectator ions for the reaction that occurs when aqueous solutions of K₂S and Fe(NO₃)₂ are mixed.

(Multiple Choice)

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Question 235

Identify the spectator ions for the reaction that occurs when aqueous solutions of lithium sulfide and copper(II)nitrate are mixed.

(Multiple Choice)

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Question 236

A solution is prepared by adding 1.70 g of solid NaCl to 50.0 mL of 0.100 M CaCl₂.What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.

(Multiple Choice)

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Question 237

Identify the oxidation state of H in HCl(aq). Ca(s)+ 2 HCl(aq)→ CaCl₂(aq)+ H₂(g)

(Multiple Choice)

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Question 238

Which of the following pairs of aqueous solutions will form a precipitate when mixed?

(Multiple Choice)

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Question 239

Showing 221 - 239 of 239

Exam 4: Chemical Quantities and Aqueous Reactions

Balance the chemical equation given below,and determine the number of moles of iodine that react with 40.0 g of aluminum. _____ Al(s)+ _____ I2(s)→ _____ Al2I6(s)

How many moles of Co2+ are present in 0.500 L of a 0.450 M solution of CoI2?

When dissolved in water,KOH behaves as

According to the following reaction,how many moles of Fe(OH)2 can form from 175.0 mL of 0.227 M LiOH solution? Assume that there is excess FeCl2. FeCl2(aq)+ 2 LiOH(aq)→ Fe(OH)2(s)+ 2 LiCl(aq)

According to the following reaction,how many grams of sulfur are formed when 37.4 g of water are formed? 2 H2S(g)+ SO2(g)→ 3 S(s)+ 2 H2O(l)

When 220.mL of 1.50 × 10-4 M hydrochloric acid is added to 135 mL of 1.75 × 10-4 M Mg(OH)2,the resulting solution will be

Define a greenhouse gas.

According to the following reaction,what mass of PbCl2 can form from 235 mL of 0.110 M KCl solution? Assume that there is excess Pb(NO3)2. 2 KCl(aq)+ Pb(NO3)2(aq)→ PbCl2(s)+ 2 KNO3(aq)

Which of the following compounds is soluble in water?

What reagent could be used to separate Br- from CH3CO2- when added to an aqueous solution containing both?

According to the following reaction,what volume of 0.244 M KCl solution is required to react exactly with 50.0 mL of 0.210 M Pb(NO3)2 solution? 2 KCl(aq)+ Pb(NO3)2(aq)→ PbCl2(s)+ 2 KNO3(aq)

How many ions are present in 30.0 mL of 0.600 M H2CO3 solution?

What mass (in g)of AgCl is formed from the reaction of 75.0 mL of a 0.078 M AgC2H3O2 solution with 55.0 mL of 0.109 M MgCl2 solution? 2 AgC2H3O2(aq)+ MgCl2(aq)→ 2 AgCl(s)+ Mg(C2H3O2)2(aq)

Dinitrogen monoxide gas decomposes to form nitrogen gas and oxygen gas.How many grams of oxygen are formed when 10.0 g of dinitrogen monoxide decomposes?

Give the spectator ions for the reaction that occurs when aqueous solutions of K2S and Fe(NO3)2 are mixed.

Identify the spectator ions for the reaction that occurs when aqueous solutions of lithium sulfide and copper(II)nitrate are mixed.

A solution is prepared by adding 1.70 g of solid NaCl to 50.0 mL of 0.100 M CaCl2.What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.

Identify the oxidation state of H in HCl(aq). Ca(s)+ 2 HCl(aq)→ CaCl2(aq)+ H2(g)

Which of the following pairs of aqueous solutions will form a precipitate when mixed?

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Balance the chemical equation given below,and determine the number of moles of iodine that react with 40.0 g of aluminum. ___ Al(s)+ _ I₂(s)→ ___ Al₂I₆(s)

How many moles of Co²⁺ are present in 0.500 L of a 0.450 M solution of CoI₂?

According to the following reaction,how many moles of Fe(OH)₂ can form from 175.0 mL of 0.227 M LiOH solution? Assume that there is excess FeCl₂. FeCl₂(aq)+ 2 LiOH(aq)→ Fe(OH)₂(s)+ 2 LiCl(aq)

According to the following reaction,how many grams of sulfur are formed when 37.4 g of water are formed? 2 H₂S(g)+ SO₂(g)→ 3 S(s)+ 2 H₂O(l)

When 220.mL of 1.50 × 10^-4M hydrochloric acid is added to 135 mL of 1.75 × 10^-4 M Mg(OH)₂,the resulting solution will be

According to the following reaction,what mass of PbCl₂ can form from 235 mL of 0.110 M KCl solution? Assume that there is excess Pb(NO₃)₂. 2 KCl(aq)+ Pb(NO₃)₂(aq)→ PbCl₂(s)+ 2 KNO₃(aq)

What reagent could be used to separate Br^- from CH₃CO₂^-when added to an aqueous solution containing both?

According to the following reaction,what volume of 0.244 M KCl solution is required to react exactly with 50.0 mL of 0.210 M Pb(NO₃)₂ solution? 2 KCl(aq)+ Pb(NO₃)₂(aq)→ PbCl₂(s)+ 2 KNO₃(aq)

How many ions are present in 30.0 mL of 0.600 M H₂CO₃ solution?

What mass (in g)of AgCl is formed from the reaction of 75.0 mL of a 0.078 M AgC₂H₃O₂ solution with 55.0 mL of 0.109 M MgCl₂ solution? 2 AgC₂H₃O₂(aq)+ MgCl₂(aq)→ 2 AgCl(s)+ Mg(C₂H₃O₂)₂(aq)

Give the spectator ions for the reaction that occurs when aqueous solutions of K₂S and Fe(NO₃)₂ are mixed.

A solution is prepared by adding 1.70 g of solid NaCl to 50.0 mL of 0.100 M CaCl₂.What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.

Identify the oxidation state of H in HCl(aq). Ca(s)+ 2 HCl(aq)→ CaCl₂(aq)+ H₂(g)