Homework Answers
You have the reaction:
2 HNO3 + Cu = Cu (NO3) 2 + H2
The moles of the reagents are calculated:
n HNO3 = M * V = 6 M * 0.004 L = 0.024 mol
n Cu = g / MM = 0.65 g / 63.5 g / mol = 0.010 mol
The limit reagent is Cu.
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2. In reaction (i), suppose you add 4.0 mL of 6 M nitric acid to a sphere of copper metal that weighs 0.65 grams...
limiting reagent ml Cu 2. In reaction (G), suppose that you add 3.5 ml of 6...
limiting reagent ml
Cu 2. In reaction (G), suppose that you add 3.5 ml of 6 M nitric acid to a sphere of copper metal that weighs 0.41 grams. Which reactant is the limiting reagent? (Show your work) Cu 3.55, mう55 CHEM1414-AY-2017-2018
1. Balance the three copper reactions: + H20 (1) Cu(NO3)2 (aq) + NO2(g) i) Cu (s)...
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1. Balance the three copper reactions: +H20 (1) +NO2 (g) Cu(NO3)2 (aq) i) Cu (s) HNO3...
1. Balance the three copper reactions: +H20 (1) +NO2 (g) Cu(NO3)2 (aq) i) Cu (s) HNO3 (aq) NANO3 (aq) NaOH (aq) Cu(OH)2 (s) + ii) Cu(NOs)2 (aq) + H2O (1I) CuO (s) iii) Cu(OH)2 (s) 2. In reaction (i), suppose you add 4.0 mL of 6M nitric acid to a sphere of copper metal that weighs 0.65 grams. Which reactant is the limiting reagent? (Show your work)
REACTION OF COPPER AND ITS COMPOUNDS PRE-LABORATORY QUESTIONS The following preparatory questions should be answered before...
REACTION OF COPPER AND ITS COMPOUNDS PRE-LABORATORY QUESTIONS The following preparatory questions should be answered before coming to lab. They are intended to introduce you to several ideas that are important to aspects of the experiment. You must turn in your work to your instructor before you will be allowed to begin the experiment. 1. Balance the three copper reactions: Cu(NO3)2 (aq) + NO2(g) + H2O (1) i) Cu (s) + HNO3(aq) ii) Cu(NO3)2 (aq) + NaOH(aq) Cu(OH)2 (s) +...
3. a. Why should the Cu(OH)2 precipitate that is formed during reaction (ii) be heated slowly...
3. a. Why should the Cu(OH)2 precipitate that is formed during reaction (ii) be heated slowly during reaction (ii)? b. Why does reaction (i) have to be carried out in the fume hood? 4. Reaction (iii) is considered to be c) decomposition d) acid-base e) precipitation b) single displacement a) combination EXPERIMENT 9 REACTION OF COPPER AND ITS COMPOUNDS PRE-LABORATORY QUESTIONS The following preparatory questions should be answered before coming to lab. They are intended to introduce you to several...
The following preparatory questions should be answered before coming to lab. They are intended to introduce...
The following preparatory questions should be answered before coming to lab. They are intended to introduce you to several ideas that are important to aspects of the experiment. You must turn in your work to your instructor before you will be i allowed to begin the experiment. 1. Balance the three copper reactions: 1) Cu(s) + HNO3(aq) ii) Cu(NO3)2 (aq) + 2NaOH(aq) - iii) Cu(OH)2 (3) Cu(NO3)2 (aq) +NO2(g) + H2O (1) Cu(OH)2 (8) + NaNO (aq) CuO (s) +...
1. A student weighs out 1.100 grams of copper(II) chloride dihydrate and 3.500 grams of silver...
1. A student weighs out 1.100 grams of copper(II) chloride dihydrate and 3.500 grams of silver nitrate: a. Calculate the molar masses for the reactants: CuCl . 2 H,0 AgNO, Molar Mass (g/mol) b. Calculate the moles of copper(II) chloride dihydrate. c. Calculate the moles of copper(II) chloride from the moles of copper(II) chloride dihydrate. d. What happens to the water of hydration when the solid dissolves? e. Calculate the moles of silver nitrate. f. Write the balanced chemical equation...
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2. When zinc metal reacts with copper(II) nitrate, zinc(II) nitrate and copper metal are the products. How many grams of zinc metal are required to react completely with 725 mL of 0.1955 M copper (II) nitrate solution? What mass of copper metal is produced? You will need a balanced equation to solve this problem! 3. One step in the process of manufacturing nitric acid (HNO3), a staple industrial chemical, is 3 NO2 (g) + H20 (1) ► 2HNO3...
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In lab, you reacted copper metal with aqueous nitric acid to produce aqueous Copper (11) nitrate, nitrogen dioxide gas and water. Cu (s) + 4HNO3 (aq) ---- > Cu(NO3)2 (aq) + 2NO2 (g) + 2H20 (1) a) If 0.210 gram of copper is reacted with 35.0 mL of 0.551 mol/L nitric acid, how many molecules and how grams of copper (II) nitrate are produced? b) How many moles of the reagent that is in excess are left over? c) If...
In lab, you reacted copper metal with aqueous nitric acid to produce aqueous copper (II) nitrate,...
In lab, you reacted copper metal with aqueous nitric acid to produce aqueous copper (II) nitrate, nitrogen dioxide gas and water. Cu (s) + 4HNO3 (aq) ---- > Cu(NO3)2 (aq) + 2NO2 (g) + 2H2O (l) a) If 0.210 gram of copper is reacted with 35.0 mL of 0.551 mol/L nitric acid, how many molecules and how grams of copper (II) nitrate are produced? b) How many moles of the reagent that is in excess are left over? c) If...
limiting reagent ml
Cu 2. In reaction (G), suppose that you add 3.5 ml of 6 M nitric acid to a sphere of copper metal that weighs 0.41 grams. Which reactant is the limiting reagent? (Show your work) Cu 3.55, mう55 CHEM1414-AY-2017-2018
1. Balance the three copper reactions: + H20 (1) Cu(NO3)2 (aq) + NO2(g) i) Cu (s) + HNO3 (aq) ii) Cu(NO3)2 (aq) + NaOH(aq) Cu(OH)2 (s) + NaNO3(aq) (aq) - iii) Cu(OH)2 (S) Cuo(s) + H2O (1) 2. In reaction (i), suppose you add 4.0 mL of 6 M nitric acid to a sphere of copper metal that weighs 0.65 grams. Which reactant is the limiting reagent? (Show your work)
1. Balance the three copper reactions: +H20 (1) +NO2 (g) Cu(NO3)2 (aq) i) Cu (s) HNO3 (aq) NANO3 (aq) NaOH (aq) Cu(OH)2 (s) + ii) Cu(NOs)2 (aq) + H2O (1I) CuO (s) iii) Cu(OH)2 (s) 2. In reaction (i), suppose you add 4.0 mL of 6M nitric acid to a sphere of copper metal that weighs 0.65 grams. Which reactant is the limiting reagent? (Show your work)
REACTION OF COPPER AND ITS COMPOUNDS PRE-LABORATORY QUESTIONS The following preparatory questions should be answered before coming to lab. They are intended to introduce you to several ideas that are important to aspects of the experiment. You must turn in your work to your instructor before you will be allowed to begin the experiment. 1. Balance the three copper reactions: Cu(NO3)2 (aq) + NO2(g) + H2O (1) i) Cu (s) + HNO3(aq) ii) Cu(NO3)2 (aq) + NaOH(aq) Cu(OH)2 (s) +...
3. a. Why should the Cu(OH)2 precipitate that is formed during reaction (ii) be heated slowly during reaction (ii)? b. Why does reaction (i) have to be carried out in the fume hood? 4. Reaction (iii) is considered to be c) decomposition d) acid-base e) precipitation b) single displacement a) combination EXPERIMENT 9 REACTION OF COPPER AND ITS COMPOUNDS PRE-LABORATORY QUESTIONS The following preparatory questions should be answered before coming to lab. They are intended to introduce you to several...
The following preparatory questions should be answered before coming to lab. They are intended to introduce you to several ideas that are important to aspects of the experiment. You must turn in your work to your instructor before you will be i allowed to begin the experiment. 1. Balance the three copper reactions: 1) Cu(s) + HNO3(aq) ii) Cu(NO3)2 (aq) + 2NaOH(aq) - iii) Cu(OH)2 (3) Cu(NO3)2 (aq) +NO2(g) + H2O (1) Cu(OH)2 (8) + NaNO (aq) CuO (s) +...
1. A student weighs out 1.100 grams of copper(II) chloride dihydrate and 3.500 grams of silver nitrate: a. Calculate the molar masses for the reactants: CuCl . 2 H,0 AgNO, Molar Mass (g/mol) b. Calculate the moles of copper(II) chloride dihydrate. c. Calculate the moles of copper(II) chloride from the moles of copper(II) chloride dihydrate. d. What happens to the water of hydration when the solid dissolves? e. Calculate the moles of silver nitrate. f. Write the balanced chemical equation...
please help!!
2. When zinc metal reacts with copper(II) nitrate, zinc(II) nitrate and copper metal are the products. How many grams of zinc metal are required to react completely with 725 mL of 0.1955 M copper (II) nitrate solution? What mass of copper metal is produced? You will need a balanced equation to solve this problem! 3. One step in the process of manufacturing nitric acid (HNO3), a staple industrial chemical, is 3 NO2 (g) + H20 (1) ► 2HNO3...
In lab, you reacted copper metal with aqueous nitric acid to produce aqueous Copper (11) nitrate, nitrogen dioxide gas and water. Cu (s) + 4HNO3 (aq) ---- > Cu(NO3)2 (aq) + 2NO2 (g) + 2H20 (1) a) If 0.210 gram of copper is reacted with 35.0 mL of 0.551 mol/L nitric acid, how many molecules and how grams of copper (II) nitrate are produced? b) How many moles of the reagent that is in excess are left over? c) If...
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