The following data were collected for the preparation of the Copper (i) chloride in the lab. Atomic masses : Cu = 63.5, Cl = 35.5, H= 1.00 ,N = 14.00, Na = 23.0 , C = 12.0 g/mol, respectively i. Weight of copper 1.150 g ii Volume of 15.8M nitric acid added 5.80 mL Iii Weight of Na2CO3 added 4.420 g iv Experimental yield of CuCl obtained 2.970 g v Theoretical yield of CuCl ? vi Percent yield of CuCl ? The following reactions should be useful: Cu(s) + 4HNO3((aq) → Cu(NO3)2 + 2NO2(g) + H2O(l) ii 2HNO3(aq) + Na2CO3(s) → H2O(l) + CO2(g) + 2NaNO3(aq) iii. Cu(NO3)2(aq) + Na2CO3(s) → CuCO3(s) + 2NaNO3(aq) iv. CuCO3(s) + 2HCl(aq) → CuCl2(aq) + H2O(l) + CO2(g) v. CuCl2(aq) +Cu(s) → 2CuCl(s) Based on the above data, calculate the number of moles of HNO3 that are in excess. Also based on the above data , the excess moles of HNO3 used, and the moles of Cu(NO3)2 produced in the first step, how many grams of sodium carbonate was added in excess. The answer choices are given in this format. HNO3(excess mols) Na2CO3(excess grams) Group of answer choices 0.0152 4.420 0.0196 1.473 0.0724 2.623 0.0276 1.764

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The following data were collected for the preparation of the Copper (i) chloride

in the lab. Atomic masses : Cu = 63.5, Cl = 35.5, H= 1.00 ,N = 14.00, Na = 23.0 ,

C = 12.0 g/mol, respectively

i. Weight of copper	1.150 g
ii Volume of 15.8M nitric acid added	5.80 mL
Iii Weight of Na₂CO₃ added	4.420 g
iv Experimental yield of CuCl obtained	2.970 g
v Theoretical yield of CuCl	?
vi Percent yield of CuCl	?

The following reactions should be useful:

Cu(s) + 4HNO₃((aq) → Cu(NO₃)₂ + 2NO₂(g) + H₂O(l)

ii 2HNO₃(aq) + Na₂CO₃(s) → H₂O(l) + CO₂(g) + 2NaNO₃(aq)

iii. Cu(NO₃)₂(aq) + Na₂CO₃(s) → CuCO₃(s) + 2NaNO₃(aq)

iv. CuCO₃(s) + 2HCl(aq) → CuCl₂(aq) + H₂O(l) + CO₂(g)

v. CuCl₂(aq) +Cu(s) → 2CuCl(s)

Based on the above data, calculate the number of moles of HNO₃ that are in excess.

Also based on the above data , the excess moles of HNO₃ used, and the moles of

Cu(NO₃)₂ produced in the first step, how many grams of sodium carbonate was

added in excess.

The answer choices are given in this format.

HNO₃(excess mols)

Na₂CO₃(excess grams)

Group of answer choices

0.0152

4.420

0.0196

1.473

0.0724

2.623

0.0276

1.764

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