Question

Calculate the mass in grams of 0.17 mole of hydrogen sulphide, H2S.
(Atomic masses H = 1 u, S = 32 u)

Answer 1

The mass of hydrogen sulphide (H2S) in grams is 5.78 g.

Explanation:

• From the question, it is understood that the hydrogen sulphide (H2S) moles are 0.17.
• So, the molar mass of H2S = atomic moss of 2 hydrogen atoms + atomic mass of suphur .
• = (2 × 1) + (1 × 32)g = 34g                    
• So, the weight of 0.17 moles of H2S = 34 × 0.17 = 5.78g .
• Therefore, the weight of hydrogen sulphide with 0.17 moles is 5.78 grams.

You can get all the answers of Chapter 3 in the link below:

https://brainly.in/question/15041870

Few questions related to this chapter:

How many moles are represented by 100 g of glucose, C6H12O6 ? (C = 12 u, H .....

brainly.in/question/14914938

(a) What is meant by 'a mole of carbon atoms' ?

(b) Which has more atoms, 5.....

brainly.in/question/14914942

Answer 2

Answer:

5.78

Explanation:

Atomic mass of Hydrogen = 1

Atomic mass of Sulphide = 32

Molecular mass = 2*1 + 1*32 = 34g

1 mole of hydrogen sulphide = 34g

0.17 moles = 34/0.17

                => 5.78g