Question

what is the volume occupied by 13 gram of c2h2 at stp

Answer 1

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Answer 2

Given:

13 grams of acetylene.

To find:

The volume occupied at STP.

Solution:

The atomic weight of a C atom is 12 grams and the atomic weight of an H atom is 1 gram.

Hence the molecular weight of acetylene is 12×2+2=26 grams.

Now we know that,

At STP 26 grams of acetylene occupy a 22.4-litre volume.

Hence 13 grams of acetylene occupy a 22.4×13/26=11.2-litre volume.

Hence 13 grams of acetylene occupy an 11.2-litre volume.