Victor Meyer's method makes use of the fact that ............ gram mole of a substance in gaseous state occupies a volume of ............ cc at S.T.P.

Explanation

To solve the question regarding Victor Meyer's method, we need to fill in the blanks with the appropriate values.

### Step-by-Step Solution:

1. **Understanding the Concept**: Victor Meyer's method is a technique used for determining the molecular mass of a substance. It relies on the properties of gases at standard temperature and pressure (STP).

2. **Identify the Volume of Gas at STP**: At STP, 1 gram mole of any ideal gas occupies a specific volume. This volume is a standard value that is commonly known in chemistry.

...