Calculate number of molecules in 1 ml of `Co_(2)` at NTP.

Explanation

To calculate the number of molecules in 1 ml of CO₂ at NTP (Normal Temperature and Pressure), follow these steps:

### Step 1: Understand the volume of one mole of gas
At NTP, one mole of any ideal gas occupies a volume of 22.4 liters.

### Step 2: Convert liters to milliliters
Since we need the volume in milliliters, we convert 22.4 liters to milliliters:
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