Calculate the mass of the following:
(i) 0.5 mole of `N_(2)` gas (mass from mole of molecule)
(ii) 0.5 mole of N atoms (mass from mole of atom)
(iii) `3.011 × 10_(23)` number of N atoms (mass from number)
(iv) `6.022 × 10_(23)` number of `N_(2)` molecules (mass from number)

Explanation

To solve the question, we will calculate the mass for each of the given scenarios step by step.

### (i) Calculate the mass of 0.5 mole of \( N_2 \) gas

1. **Identify the molecular weight of \( N_2 \)**:
- The atomic weight of nitrogen (N) is 14 g/mol.
- Therefore, the molecular weight of \( N_2 \) (which has 2 nitrogen atoms) is:
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