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4. Consider the following reactions: Cu20 + Cu2S Cu+SO2 250 kg of copper (I) oxide is...
Cu2S + O2à2Cu + SO2 If the reaction of .760 Kg of copper sulfide(I) with excess...
Cu2S + O2à2Cu + SO2 If the reaction of .760 Kg of copper sulfide(I) with excess oxygen produces 0.310 kg of copper metal, what is the percentage yield? 40.8% 39.9% 204% 51.1% 102%
1. Balance the three copper reactions: + H20 (1) Cu(NO3)2 (aq) + NO2(g) i) Cu (s)...
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...
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)
Can I get help with these 4 questions. 1. If copper completely dissolves in 15.9 M...
Can
I get help with these 4 questions.
1. If copper completely dissolves in 15.9 M nitric acid according to the following formula, how much nitric acid is required to dissolve 1.238 g of copper? Cus+ 4HNO3) Cu(NO3)2(a + 2NO 21g) + 2H2O2 2 Determine the oxidation numbers designated by letters for the following redox reaction and write them in the blank beside the corresponding letter: Cu" + 2HNO3 → Cu(NO3)2 + HF A = _ B= __ C=_ DE_...
lab help please, ive answered a few questions need help on the rest 4. Consider the...
lab help please, ive answered a few questions need help on the
rest
4. Consider the following problem and answer each question below to help you answer the overall questions posed here. This question is based on the reaction that you wrote in Question 3. A chemist allows 85.4 g of iron (II) chloride to react with 49.8g of hydrogen sulfide. How many grams of hydrochloric acid could be produced? How many moles of iron (II) chloride are present in...
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...
I would like help understanding these questions. Thank you for your time! 4. Consider the following...
I would like help understanding these questions.
Thank you for your time!
4. Consider the following unbalanced equation: AgNO3(aq) + Cu(s) → Cu(NO3)2 (aq) + _ _Ag (s) (a) Balance the equation. (b) Calculate the amount of metallic silver (in grams) that can be produced from a solution containing 5.00 g of metallic copper and 20.0 g of silver(I) nitrate. (c) Calculate the amount of the reagent (in grams) of the excess reagent. (d) Calculate the percent yield if the...
D. Complete the following stoichiometry problems. Show ALL of your work to receive full credit. Equations...
D. Complete the following stoichiometry problems. Show ALL of your work to receive full credit. Equations and mole-to-mole relationships 21. For the following reaction: 4Cr(s) + 302(g) → 2Cr2O3(s) a. How many moles of oxygen (O2) would react with 0.35 moles of chromium (Cr)? b. Starting with 10.4g of Oz, how many moles of Cr203 can be produced: c. How many grams of Cr metal would be needed to produce 38.2g of chromium (III) oxide? 22. Sulfuric acid (H2SO4) is...
need a-g LAB VII. PRACTICE PROBLEMS NAME: SECTION: PART D. CHAPTER 4 PROBLEMS I) Reaction Stoichiometry,...
need a-g
LAB VII. PRACTICE PROBLEMS NAME: SECTION: PART D. CHAPTER 4 PROBLEMS I) Reaction Stoichiometry, Limiting Reactant, Theoretical and Percent Yields a) For the equation Cu + C → Cu + Co, if 2.73 moles of C are reacted with an excess of Cu20, how many moles of CO would be produced? moles b) For the equation Co(NO3)3 + (NH4)2S → Co2S3 + NH4NO3, if 79.2 g of Co(NO3)3 are reacted with an excess of (NH4)2S, how many moles...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
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)
Can
I get help with these 4 questions.
1. If copper completely dissolves in 15.9 M nitric acid according to the following formula, how much nitric acid is required to dissolve 1.238 g of copper? Cus+ 4HNO3) Cu(NO3)2(a + 2NO 21g) + 2H2O2 2 Determine the oxidation numbers designated by letters for the following redox reaction and write them in the blank beside the corresponding letter: Cu" + 2HNO3 → Cu(NO3)2 + HF A = _ B= __ C=_ DE_...
lab help please, ive answered a few questions need help on the
rest
4. Consider the following problem and answer each question below to help you answer the overall questions posed here. This question is based on the reaction that you wrote in Question 3. A chemist allows 85.4 g of iron (II) chloride to react with 49.8g of hydrogen sulfide. How many grams of hydrochloric acid could be produced? How many moles of iron (II) chloride are present in...
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...
I would like help understanding these questions.
Thank you for your time!
4. Consider the following unbalanced equation: AgNO3(aq) + Cu(s) → Cu(NO3)2 (aq) + _ _Ag (s) (a) Balance the equation. (b) Calculate the amount of metallic silver (in grams) that can be produced from a solution containing 5.00 g of metallic copper and 20.0 g of silver(I) nitrate. (c) Calculate the amount of the reagent (in grams) of the excess reagent. (d) Calculate the percent yield if the...
D. Complete the following stoichiometry problems. Show ALL of your work to receive full credit. Equations and mole-to-mole relationships 21. For the following reaction: 4Cr(s) + 302(g) → 2Cr2O3(s) a. How many moles of oxygen (O2) would react with 0.35 moles of chromium (Cr)? b. Starting with 10.4g of Oz, how many moles of Cr203 can be produced: c. How many grams of Cr metal would be needed to produce 38.2g of chromium (III) oxide? 22. Sulfuric acid (H2SO4) is...
need a-g
LAB VII. PRACTICE PROBLEMS NAME: SECTION: PART D. CHAPTER 4 PROBLEMS I) Reaction Stoichiometry, Limiting Reactant, Theoretical and Percent Yields a) For the equation Cu + C → Cu + Co, if 2.73 moles of C are reacted with an excess of Cu20, how many moles of CO would be produced? moles b) For the equation Co(NO3)3 + (NH4)2S → Co2S3 + NH4NO3, if 79.2 g of Co(NO3)3 are reacted with an excess of (NH4)2S, how many moles...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
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