An electric bulb of volume 250cc was sealed during manufacturing at a pressure of `10^(-3)`mm of mercury at `27^(@)`C. Compute the number of air molecules contained in the bulb.Avogadro constant `=6xx10^(23)mol^(-1),` density of mercury`=13600kgm^(-3)and g=10ms^(-2)`.

Explanation

To solve the problem, we will follow these steps:

### Step 1: Convert the volume from cubic centimeters to cubic meters.
Given:
- Volume of the bulb = 250 cc = 250 cm³

To convert cubic centimeters to cubic meters, we use the conversion factor:
1 cm³ = 10^(-6) m³
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