Neco Model Questions Vol1 2022 Chemistry Question 19

Practice objective / multiple choice question 19 from the 2022 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2022 Chemistry Objective / Multiple Choice Medium Difficulty
Question 19 NECO_MODEL_QUESTIONS_VOL1 • 2022 • CHEMISTRY • objective

A 2.00 g sample of an unknown compound containing only carbon, hydrogen and oxygen is completely combusted, producing 4.00 g of \(\mathrm{CO_2}\) and 1.64 g of \(\mathrm{H_2O}\). (a) Determine the empirical formula of the compound. (b) If its molar mass is approximately 176 g·mol⁻¹, find its molecular formula.

Answer Options

A. Empirical formula C₃H₆O; Molecular formula C₉H₁₈O₃
B. Empirical formula C₄H₈O₂; Molecular formula C₁₆H₃₂O₈
C. Empirical formula C₂H₆O; Molecular formula C₁₀H₂₄O₅
Correct Answer D. Empirical formula C₂H₄O; Molecular formula C₈H₁₆O₄
Correct Answer
D
Correct Option:
Empirical formula C₂H₄O; Molecular formula C₈H₁₆O₄

About This Question

This is Neco Model Questions Vol1 2022 Chemistry Question 19. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support