Calculate the number of molecules in 1120 ml of hydrogen at STP?

Explanation

To calculate the number of molecules in 1120 ml of hydrogen gas (H₂) at standard temperature and pressure (STP), follow these steps:

### Step 1: Convert the volume from milliliters to liters
Since 1 liter is equal to 1000 milliliters, we can convert 1120 ml to liters:
\[ \text{Volume in liters} = \frac{1120 \, \text{ml}}{1000} = 1.12 \, \text{liters} \]

...