1. 3.4mol Cu has2. 7.91x1023K atoms is3. 42.3g Tin has4. How many atoms are in 1.54g Zn5. What is the mass of 7.9x1021¹ uranium atomsmolsmols6. 55.2g NaCl has7. 1.55mol carbontetrafluoride has8. 5.94 x 1020 H₂O₂ molecules has9. How many molecules are in 89g CCl410. What is the mass of 9.85 x 1019 CH4 moleculesatomsmolsmol Omols Cl11. 1.2mol H₂O₂ has12. 4.2mol NaClO3 has13. 0.273mol C₂H6 hasmol H14. A 0.45g sample decomposes to 0.27g C, 0.020g H and 0.16g O. Calculate mass percent of C, H andOmoleculesmols15. Silver chloride contains 75.27% Ag. Calculate mass of silver chloride containing 4.8g Ag.16. Calculate mass percent of C in :• C3H6• C₂H617. Calculate empirical formula for a compound containing:• C=62.04%, H=10.41%, O=27.55%• C-63.56%, H=6.00%, N=9.27%, 0=21.17%18. Calculate molecular formulas for a compound having:• molar mass of 219.9g/mol and empirical formula of P2O3• molar mass of 131.39g/mol and empirical formula of C₂HCl3• molar mass of 163.26g/mol and empirical formula of C₁1H17N

It is based on the concept of mole concept. Here we are required to find 1)number of atoms present…

Answered: 1. 3.4mol Cu has 2. 7.91x1023K atoms is…

1. 3.4mol Cu has 2. 7.91x1023K atoms is 3. 42.3g Tin has 4. How many atoms are in 1.54g Zn 5. What is the mass of 7.9x102¹ uranium atoms mols atoms mols

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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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

1. 3.4mol Cu has
2. 7.91x1023K atoms is
3. 42.3g Tin has
4. How many atoms are in 1.54g Zn
5. What is the mass of 7.9x1021¹ uranium atoms
mols
mols
6. 55.2g NaCl has
7. 1.55mol carbontetrafluoride has
8. 5.94 x 1020 H₂O₂ molecules has
9. How many molecules are in 89g CCl4
10. What is the mass of 9.85 x 1019 CH4 molecules
atoms
mols
mol O
mols Cl
11. 1.2mol H₂O₂ has
12. 4.2mol NaClO3 has
13. 0.273mol C₂H6 has
mol H
14. A 0.45g sample decomposes to 0.27g C, 0.020g H and 0.16g O. Calculate mass percent of C, H and
O
molecules
mols
15. Silver chloride contains 75.27% Ag. Calculate mass of silver chloride containing 4.8g Ag.
16. Calculate mass percent of C in :
• C3H6
• C₂H6
17. Calculate empirical formula for a compound containing:
• C=62.04%, H=10.41%, O=27.55%
• C-63.56%, H=6.00%, N=9.27%, 0=21.17%
18. Calculate molecular formulas for a compound having:
• molar mass of 219.9g/mol and empirical formula of P2O3
• molar mass of 131.39g/mol and empirical formula of C₂HCl3
• molar mass of 163.26g/mol and empirical formula of C₁1H17N

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