4 A compound is 64.9% carbon, 13.5% hydrogen and 21.6% oxygen. Its molecuia mass is 74 g/mol. What is the molecular formula? 33 A compound is 54.5% carbon, 9.1% hydrogen and 36.4 % oxygen. Its molecular mass is 88 g/mol. What is the molecular formula? 3=1
4 A compound is 64.9% carbon, 13.5% hydrogen and 21.6% oxygen. Its molecuia mass is 74 g/mol. What is the molecular formula? 33 A compound is 54.5% carbon, 9.1% hydrogen and 36.4 % oxygen. Its molecular mass is 88 g/mol. What is the molecular formula? 3=1
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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I need help with the two questions that's blank
And I need help with the the first question with 8 9 and 10

Transcribed Image Text:8. 46.3 % Sulfur, 53.7 % iron
9. 29 % oxygen, 8.5 % nitrogen, 62.5% lead
10. 13.7 % sulfur, 27.4 % oxygen, 58.8 % barim
See 56 on next page
Chem Activity 056 Determining Molecular Forr
Solve the problems below
1. The empirical formula of a compound is NO,. It
What is its molecular formula?
Empirical formula is NO2, and the molar mass c
So 92 g/mol/46 g/mol is 2. So 2 x NO, =N.O,
2. The empirical formula of a compound in CH2. It
What is the molecular formula?
empinical forinukt CHe H har
10 0
64 -4 nf

Transcribed Image Text:40 0% Carbon
Cubrlk at the Grrom
A compound is 64.9% ćarbon, 13.5% hvdrogen and 21.6% oxygen. Its molecular
mass is 74 g/mol. What is the molecular formula?
H2=2 x254
gensl 4.
en-16
n40233
-535/
33
Snakgi A compound is 54.5% carbon, 9.1% hydrogen and 36.4 % oxygen. Its molecular
mass is 88 g/mol. What is the molecular formula?
ya
33/3.3=1
Same as CH20
On: molecularmass
X 1=12
Answers
= x 2=Z
-=1 x16-16
| tZ 16 されこ60
(30)n 60
Londe on buh Sldey
fren mulitiply
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