The simplest form of gas acetylene is CH.Its density is 1.17grams/L. Find the Correct formulas for acetylene.?

Question

My teacher doesnt explain anything, he forgot to order the book and he doesn't provide examples. he makes us do our work with no guidance and we take it up as a group like a week later. I'd just like to understand. I am smart but with no direction.. i dont know what to do . I work well with examples and i dont have any,
thanks

Answer 1

At STP, 22.4 l will weigh : 1.17*22.4 = 26.208 g

This is the weight if 1 mole.

Now, C2H2 = 2*12+2 = 26 g

Thus molecular formula of Ethyne is C2H2