Question

18g of CH4 , contains y NA
number of atoms. Then the value of y is?

Answer 1

Answer:

1.125 For detail ☝☝☝☝☝☝☝☝☝☝☝

Answer 2

Given:

The mass of CH4 = 18 gm

The total no of atoms = y NA

To Find:

The value of y.

Calculation:

- The molar mass of CH4 = 16 gm

⇒ No of moles of CH4 in 18 gm = 18 / 16

⇒ No of moles of CH4 = 1.125

- No of molecules in 1 mole = NA

⇒ No of molecules in 1.125 moles = 1.125 NA

- Comparing from the given data, we get:

y = 1.125

- So, the value of y is 1.125.