Calculate the number of g-molecules (mole of molecules) in the following : (i) 3.2 gm `CH_(4)` (ii) 70 gm nitrogen (iii) `4.5xx10^(24)` molecules of ozone (iv) `2.4xx10^(21)` atoms of hydrogen (v) 11.2 L ideal gas at `0^(@)` C and 1 atm (vi) 4.54 ml `SO_(3)` gas at STP (vii) 8.21 `L C_(2)H_(6)` gas at 400 K and 2 atm (viii) 164.2 ml He gas at `27^(@)C` and 570 torr `[N_(A)=6xx10^(23)]`
Text Solution
AI Generated Solution
To solve the problem of calculating the number of gram molecules (moles of molecules) for the given substances, we will follow a systematic approach for each part of the question.
### Solution Steps:
**(i) For 3.2 g of CH₄:**
1. **Identify the molar mass of CH₄.**
- Molar mass of CH₄ = 12 (C) + 4 (H) = 16 g/mol.
2. **Use the formula for moles:**
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