Calculate the no. of mole in 63 g of `NHO_3`

Options

A. 10
B. 1
C. 0.1
D. 0.01

Explanation

To calculate the number of moles in 63 g of \( \text{NHO}_3 \), follow these steps:

### Step 1: Calculate the Molar Mass of \( \text{NHO}_3 \)

1. **Identify the elements and their quantities**:
- Nitrogen (N): 1 atom
- Hydrogen (H): 1 atom
- Oxygen (O): 3 atoms

2. **Find the atomic masses**:
- Atomic mass of Nitrogen (N) = 14 g/mol
- Atomic mass of Hydrogen (H) = 1 g/mol
- Atomic mass of Oxygen (O) = 16 g/mol

3. **Calculate the total molar mass**:
\[ \text{Molar mass of } \text{NHO}_3 = (1 \times 14) + (1 \times 1) + (3 \times 16) \]
\[ = 14 + 1 + 48 = 63 \text{ g/mol} \]

### Step 2: Calculate the Number of Moles

1. **Use the formula for calculating moles**:
\[ \text{Number of moles} = \frac{\text{Given mass}}{\text{Molar mass}} \]

2. **Substitute the values**:
\[ \text{Number of moles} = \frac{63 \text{ g}}{63 \text{ g/mol}} = 1 \text{ mole} \]

### Final Answer
The number of moles in 63 g of \( \text{NHO}_3 \) is **1 mole**.

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