Question

LSD is a complex compound whose mass is made up of 74.27% carbon, 7.79% hydrogen, 12.99%
nitrogen and 4.95% oxygen. What percent of the atoms in LSD are carbon atoms?​

Answer 1

Hey Dear,

◆ Answer -

% C-atoms = 40.67 %

◆ Explanation -

For simplicity, let's take 100 g of LSD.

Total no of moles in a compound is -

n(total) = 74.27/12 + 7.79/1 + 12.99/14 + 4.95/16

n(total) = 15.22 mol

Moles of carbon in a compound is -

n(C) = 74.27/12

n(C) = 6.19 mol

Percent of C-atoms in LSD are -

% C-atoms = C-atoms / total atoms × 100

% C-atoms = n(C)×NA / n(total)×NA × 100

% C-atoms = n(C)/n(total) × 100

% C-atoms = 6.19/15.22 × 100

% C-atoms = 40.67 %

Therefore, percentage of C-atoms in LSD is 40.67 %.

Best luck dear...

Answer 2

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