Answer:
126 grams of C
Step-by-step explanation:
Molar mass of C = 12
Molar mass of H = 1
In methane (CH4) the ratio of the masses of carbon to hydrogen is given as;
C : H = 12g : 4g = 3g : 1g
This means there is 3g of C to 1g of H. If there are 42g of H, how many C..?
3 = 1
x = 42
x = 126 grams of C