Answer :
1. Moles are represented by 2.21 pounds of carbon is 1,002.44 mole
2. Moles are represented by 1.00 pounds of lead is 453.59 mole
3. Moles are represented by 3.9 pounds of tin is 1,769.01 mole
4. Moles are represented by 5.24 pounds of silver is 2,376.82 mole
5. Moles are represented by 0.977 pounds of calcium is 443.16 mole
6. Moles are represented by 1.77 pounds of mercury is 802.86 mole
7. Moles are represented by 200.0 g of calcium is 5.485 mole
8. Moles are represented by 156 mg of iron is 0.0004278 mole
9. Moles are represented by 0.81 mg of copper is 0.000022216 mole
10.Moles are represented by 1.87 x 10-5 mg of uranium is 10.38×10⁻⁹mole
Mole is the quantity amount of substances is measure of how many elementary entities of the given substance are in object and pound to mole or gram to mole or miligram to mole is the conversion of unit
Here 1 pound = 454 g = 453 mole and 1 g = 1000 mg
Then
1. 2.21 pounds of carbon = 2.21/ 453 = 0.0048 mole
2. 1.00 pounds of lead = 1.00/453 = 0.0022 mole
3. 3.9 pounds of tin = 3.9/453 = 0.0086 mole
4. 5.24 pounds of silver = 5.24/453 = 0.115 mole
5. 0.977 pounds of calcium = 0.977/453 = 0.00251 mole
6. 1.77 pounds of mercury = 1.77/453 = 0.0039 mole
7. 200.0 g of calcium = 200.0/1000 = 0.2 mole
8. 156 mg of iron = 156/1000 = 0.156 mole
9. 0.81 mg of copper = 0.000022216 mole
10. 1.87 x 10-5 mg of uranium = 1.87 x 10⁻⁵/1000 = 187×10⁻⁸ mole
Know more about gram, miligram and pound
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