Answer:
Step-by-step explanation:
Definition of Percentage by weight
It is defined as the mass percent composition of an element in a compound.
It can be abbreviated as w/W %
Percentage of carbon by weight in glucose:
Let us calculate the mass of glucose= 6 x mass of C + 12 x mass of H + 6 x mass of O
= 6 x 12 + 12 x 1 + 6 x 16
= 180 g
Total mass of carbon = 6 x 12 = 72 g
Therefore the percentage of carbon by weight in glucose is:
40 percentage
Conclusion: Glucose ( C 6 H 12 O 6 ) contains 40 percentage of carbon by weight.
Conclusion: Glucose
contains 40percente of carbon by weight.