A sample of chemical X is found to contain 5 grams of oxygens, 10 grams of carbon and 20 grams of nitrogen. The law of definite proportion would predict that a 63 gram sample of chemical X should contain how many grams of carbon?
a. 5 g b. 6,7 g c. 10 g
d. 15 g e. 18g
a. 5 g b. 6,7 g c. 10 g
d. 15 g e. 18g
More Questions From This User See All
Verified answer
Matter : StoichiometryWeight ratio
C ÷ O ÷ N = 10 ÷ 5 ÷ 20
= 2 ÷ 1 ÷ 4
Weigh of C: 2/7 × 63 = 18 grams
Answer is E.
#ChemistryIsFun