Question

calculate the mass percentage of all elements in glucose
C6H12O6​

Answer 1

Explanation:

12×6+1×12+15×6= 72+12+90=174

Answer 2

Answer:

6×c+12×h+6×o.

6×12u+12×1u+6×16u.

72u+12u+96u.

84u+96u.

180u.

so,mass of glucose=180u.

mass of carbon=72u.

so, mass%of carbon=72u/180u.×100.

=9/10×100.

=90%.

mass of hydrogen=12u.

so,mass%of hydrogen=12u/180u×100.

=6.6%.

mass of oxygen=96u.

so,mass%of oxygen=96u/180u×100.

=53.3%.