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Question
What is the mass of 1 mole of nitrogen atoms?
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Solution
The mass of 1 mole of nitrogen atoms is 14 g.
RELATED QUESTIONS
Calculate the molar mass of the following substance:
Phosphorus molecule, P4 (atomic mass of phosphorus = 31)
Fill in the following blanks :
0.5 mole of calcium element has a mass of ............... .
Show by means of calculations that 5 moles of CO2 and 5 moles of H2O do not have the same mass. How much is the difference in their masses ?
Explain the term:
Mole
A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure.
(a) Find the number of moles of hydrogen present
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(c) If the number of molecules of hydrogen in the cylinder is X, calculate the number of CO2 molecules in the cylinder with the same conditions of temperature and pressure.
(d) State the law that helped you to arrive at the above result.
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Find the number of molecules in 1.8 g of H2O.
How many grams of HCl are present in 0.1 mole of it?
Match the following.
| 1. | 8 g of O2 | - | 4 moles |
| 2. | 4 g of H2 | - | 0.25 moles |
| 3. | 52 g of He | - | 2 moles |
| 4. | 112 g of N2 | - | 0.5 moles |
| 5. | 35.5 g of Cl2 | - | 13 moles |
How many grams are there in the following?
4 moles of the phosphorous molecule, P4
