The number of moles present in 148 g of HSO is

Options

A. 8
B. 4
C. 3
D. None of these

Explanation

To solve the problem of finding the number of moles present in 148 g of HSO, we can follow these steps:

### Step 1: Identify the given mass of HSO
The mass of HSO is given as 148 grams.

### Step 2: Calculate the molar mass of HSO
To find the molar mass, we need to add the atomic masses of each element in HSO:
- Atomic mass of Hydrogen (H) = 1 g/mol
- Atomic mass of Sulfur (S) = 32 g/mol
- Atomic mass of Oxygen (O) = 16 g/mol

Now, we sum these values:
\[ \text{Molar mass of HSO} = 1 + 32 + 16 = 49 \text{ g/mol} \]

### Step 3: Use the formula to calculate the number of moles
The number of moles (n) can be calculated using the formula:
\[ n = \frac{\text{given mass}}{\text{molar mass}} \]
Substituting the values we have:
\[ n = \frac{148 \text{ g}}{49 \text{ g/mol}} \]

### Step 4: Perform the calculation
Now, we perform the division:
\[ n = \frac{148}{49} \approx 3.02 \]
Since we are looking for the number of moles, we can round this to the nearest whole number, which gives us approximately 3 moles.

### Conclusion
Thus, the number of moles present in 148 g of HSO is approximately 3 moles.

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