Question

A 0.167-g sample of an unknown acid requires 27.8 mL of 0.100MNaOH to titrate to the equivalence point. Elemental analysis ofthe acid gives the following percentages by mass: 40.00% C; 6.71%H; 53.29% O.

Part A
Determine the molar mass of the unknown acid.
Express your answer using three significant figures.

molar mass =






Part B
Determine the molecular formula of this acid.
Express your answer as a chemical formula.







Part C
Draw the Lewis structure.
Draw the molecule by placing atoms on the grid and connecting themwith bonds. Include all nonbonding electrons.