Question

Example 29.
(a) Calculate the gram molecular mass of sugar
having molecular formula C12 H22O11,​

Answer 1

gram molecular mass of sugar is 342.12

Explanation:

because

Answer 2

Q. Calculate the gram molecular mass of sugarhaving molecular formula C12 H22O11.

Ans :-

342 g

Solution :-

Molecular mass :- The sum of masses of total atoms present in one molecule of an compound is called molecular mass.

• Molecular mass expressed in grams is called gram molecular mass.

Molecular mass of Sugar $C_12H_22O_11$

= $12 \times C + 22 \times H + 11 \times O$

C = 12 u

H = 1u

O = 16 u

=$12 \times 12 + 22 \times 1 + 11 \times 16$

= $144 + 22 + 176$

= $342 g$

hence, gram molecular mass of sugar is 342 g.