Question

Calculate the mass of 200cm3 of chlorine gas at rtp. ( atomic mass of Cl = 35.5)

Answer 1

hello

mass of chlorine equal 0.3169g

this is mole concept

thanks for

Answer 2

Answer:

The mass of 200 $cm^{3}$ of chlorine gas is 0.63 g.

Explanation:

Given volume of chlorine gas= 200 $cm^{3}$ = 200 × $10^{-3}$ L

1 mole of any gas occupies 22.4 L at standard temperature and pressure.

⇒Number of moles of chlorine gas = $\frac{200*10^{-3} }{22.4}$ = 8.93 × $10^{-3}$ moles

We know that number of moles = Given mass ÷ molar mass

Molar mass of chlorine gas = 2 × 35.5 = 71 g/mol

⇒8.93 × $10^{-3}$ = m ÷ 71

m = 8.93 × $10^{-3}$ × 71 = 0.63 g

Therefore, the mass of 200 $cm^{3}$ of chlorine gas is 0.63 g.