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6:49 Wed, Dec 18 : 2 us . ( 80 minutes remaining 5 OF 45 QUESTIONS REMAINING Question 43 10 Points A compound contains the elements \( \mathrm{C}, \mathrm{H} \), and O . It is known to contain \( 40.0 \% \mathrm{C}, 6.67 \% \mathrm{H} \), and the rest is oxygen by mass. The Empirical formula for this compound is (A) \( \mathrm{CH}_{2} \mathrm{O} \) (B) CHO (C) \( \mathrm{CH}_{2} \mathrm{O}_{2} \) (D) \( \mathrm{C}_{2} \mathrm{HO}_{2} \)

          6:49 Wed, Dec 18 : 2 us .
( 80 minutes remaining
5 OF 45 QUESTIONS REMAINING

Question 43
10 Points

A compound contains the elements \( \mathrm{C}, \mathrm{H} \), and O . It is known to contain \( 40.0 \% \mathrm{C}, 6.67 \% \mathrm{H} \), and the rest is oxygen by mass. The Empirical formula for this compound is
(A) \( \mathrm{CH}_{2} \mathrm{O} \)
(B) CHO
(C) \( \mathrm{CH}_{2} \mathrm{O}_{2} \)
(D) \( \mathrm{C}_{2} \mathrm{HO}_{2} \)

6:49 Wed, Dec 18 : 2 us .
( 80 minutes remaining
5 OF 45 QUESTIONS REMAINING

Question 43
10 Points

A compound contains the elements C, H, and O . It is known to contain 40.0 %C, 6.67 %H, and the rest is oxygen by mass. The Empirical formula for this compound is
(A) CH2O
(B) CHO
(C) CH2O2
(D) C2HO2

Added by Karen F.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Luke Monroe

Step 1

Since the compound contains 40.0% C and 6.67% H, the percentage of oxygen is: \[ 100\% - 40.0\% - 6.67\% = 53.33\% \] Show more…

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6:49 Wed, Dec 18 : 2 us . ( 80 minutes remaining 5 OF 45 QUESTIONS REMAINING Question 43 10 Points A compound contains the elements \( \mathrm{C}, \mathrm{H} \), and O . It is known to contain \( 40.0 \% \mathrm{C}, 6.67 \% \mathrm{H} \), and the rest is oxygen by mass. The Empirical formula for this compound is (A) \( \mathrm{CH}_{2} \mathrm{O} \) (B) CHO (C) \( \mathrm{CH}_{2} \mathrm{O}_{2} \) (D) \( \mathrm{C}_{2} \mathrm{HO}_{2} \)