7. a. Determine the empirical formula for a compound that contains: 95.21 g Carbon 4.79 g Hydrogen b. If the molar mass was 255 grams per mole, what is the molecular formula?
7. a. Determine the empirical formula for a compound that contains: 95.21 g Carbon 4.79 g Hydrogen b. If the molar mass was 255 grams per mole, what is the molecular formula?
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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Transcribed Image Text:i
7. a. Determine the empirical formula for a compound that contains:
95.21 g Carbon
4.79 g Hydrogen
b. If the molar mass was 255 grams per mole, what is the molecular formula?
8. Determine the empirical formula for a compound that contains:
36.25 % Carbon
4.82 % Hydrogen 26.75 % Chlorine
the blanks
Handbook 2 Ⓒ2022 Cuesta College. All rights reserved
32.19 % Oxygen
32
F
Transcribed Image Text:-c. The number of formula units found in an 8.924 g sample of Ca3(PO3)2
8.92497
x 6.022 103 FU
lovel
278-185
-d. The number of oxygen atoms (O) in 2.36 grams of Ca3(PO3)2
6.022x1023alom
278-189
Imal
380
:
1.932 × 1022 Formala units.
5. Calculate the mass percent composition of each element in K₂Cr2O7
6. Find the empirical formula of a compound that contains:
40.22 g Carbon
7.31 g Hydrogen 7.82 g Nitrogen
5.11 1021 atoms)
~
Handbook 2 Ⓒ2022 Cuesta College. All rights reserved
32.19 % Oxygen
44.65 g Oxygen
31
MILES
1.000
ARTS
157
12
x00
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