Question

Attempt any EIGHT of the following questions.
calculate the number of moles of H2S gas in volume of 67.2
dm3 at S.T.P.​

Answer 1

Answer:2.99 moles

Solution:

given volume = 67.2 dm^3

no. of moles of H2S = ?

Formula:

given volume = moles×22.414 dm^3

So,

no. of moles = given volume/22.414 dm^3

no. of moles = 67.2/22.414

no. of moles = 2.99 moles