Question

How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimited amount of H2O? The reaction is

C + H2O → CO + H2

The equation is balanced. The starting substance is carbon, C. The ending substance is hydrogen, H2.

Answer 1

choices are,
12
12.0
12.01

Answer 2

atomic wight of carbon ?? and molar mas of H2

Answer 3

12
and 2

Answer 4

Find moles of C

Moles= mass/molar mass

Answer 5

Got it.

Answer 6

Now since the stoichiometric coefficients of C and H2 are in a 1:1 ratio, you are producing the same amount of moles of H2

Now all you need to is to convert back to mass of H2 using the amount of moles you've got for C

Moles= mass/molar mass

Answer 7

Thankyou.