What is the molecular mass of substance, each molecule of which contains 4 atoms of carbon and 10 atoms of hydrogen?

Explanation

To find the molecular mass of a substance that contains 4 atoms of carbon and 10 atoms of hydrogen, we can follow these steps:

### Step 1: Identify the atomic masses
- The atomic mass of carbon (C) is 12 grams per mole.
- The atomic mass of hydrogen (H) is 1 gram per mole.

### Step 2: Calculate the contribution of carbon to the molecular mass
- Since there are 4 carbon atoms in the molecule, we multiply the number of carbon atoms by the atomic mass of carbon:
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