This question will walk you through the process of calculating the empirical formula of a 100.0 g sample of an unknown compound from its elemental percent compositions. This problem will be solved via the following sequence of conversions: mass % → mass → moles → mole ratio ->> empirical formula. Step 2: You have calculated that in a 100.0 gram sample of the unknown compound, there are 4.76 moles of nitrogen, 2.38 moles of carbon, and 4.75 moles of hydrogen. Next, determine the simplest, whole-number ratio for each element by dividing the number of moles of each by the smallest number of moles (moles → mole ratio). Which of the following represent the correct, normalized mole ratio of the elements within the sample?

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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[Tutorial: Empirical formula]
This question will walk you through the process of calculating the empirical
formula of a 100.0 g sample of an unknown compound from its elemental percent
compositions. This problem will be solved via the following sequence of
conversions: mass % mass moles mole ratio →
empirical formula.
Step 2: You have calculated that in a 100.0 gram sample of the unknown
compound, there are 4.76 moles of nitrogen, 2.38 moles of carbon, and 4.75
moles of hydrogen. Next, determine the simplest, whole-number ratio for each
element by dividing the number of moles of each by the smallest number of moles
(moles mole ratio). Which of the following represent the correct, normalized
mole ratio of the elements within the sample?
A) 4 C: 1H : 2 N
B) 1C:2 H: 2 N
moles
mole
ratio
mass
C) 1C:2 H: 1N
D) 2.38 C : 4.75 H: 4.76 N
E) 3 C:5 H:5 N
molecular struct..pdf
Transcribed Image Text:[Tutorial: Empirical formula] This question will walk you through the process of calculating the empirical formula of a 100.0 g sample of an unknown compound from its elemental percent compositions. This problem will be solved via the following sequence of conversions: mass % mass moles mole ratio → empirical formula. Step 2: You have calculated that in a 100.0 gram sample of the unknown compound, there are 4.76 moles of nitrogen, 2.38 moles of carbon, and 4.75 moles of hydrogen. Next, determine the simplest, whole-number ratio for each element by dividing the number of moles of each by the smallest number of moles (moles mole ratio). Which of the following represent the correct, normalized mole ratio of the elements within the sample? A) 4 C: 1H : 2 N B) 1C:2 H: 2 N moles mole ratio mass C) 1C:2 H: 1N D) 2.38 C : 4.75 H: 4.76 N E) 3 C:5 H:5 N molecular struct..pdf
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