Answer: The mass percent of hydrogen in ascorbic acid is 4.5 %
Explanation:
In [tex]C_6H_8O_6[/tex], there are 6 carbon atoms, 8 hydrogen atoms and 6 oxygen atoms.
To calculate the mass percent of element in a given compound, we use the formula:
[tex]\text{Mass percent of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Molar mass of ascorbic acid}}\times 100[/tex]
Mass of hydrogen = [tex]8\times 1g/mol=8g[/tex]
Molar Mass of ascorbic acid =[tex]6\times 12g/mol+8\times 1g/mol+6\times 16g/mol=176g[/tex]
Putting values in above equation, we get:
[tex]\text{Mass percent of hydrogen}=\frac{8g}{176}\times 100=4.5\%[/tex]
Hence, the mass percent of of hydrogen in ascorbic acid is 4.5 %.