Could you show me how to end up with these answers on 8 and 10 please?

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...
icon
Related questions
Question
100%
Could you show me how to end up with these answers on 8 and 10 please?
atain viruses. Unless you need to edit, it's safer to stay in Protected View.
Enable Editing
7. Naphthalene, the active ingredient in one variety of mothballs, is an organic compound that contains
carbon and hydrogen only. Complete combustion of a 20.10 mg sample of naphthalene in oxygen
yielded 69.00 mg of CO2 and 11.30 mg of H20. Determine the empirical formula of naphthalene.
(Naphthalene C10H8 and empirical formula CSH )
8. Xylene, an organic compound has molar mass 106.16 g/mol, is a major component of many gasoline
blends, contains carbon and hydrogen only. Complete combustion of a 17.12 mg sample of xylene in
oxygen yielded 56.77 mg of CO2 and 14.53 mg of H20. Determine the empirical and molecular formula
of xylene. (The empirical formula is C4H5. The molecular formula of xylene is actually CsH10-)
9. Epsom salts is a hydrated ionic compound with e formula MgSO4 · XH2O. A 9.86g sample of Epsom
salts was heated to drive off the water of hydration. The mass of the sample after complete
dehydration was 4.82g.
M8SO4-7H20
10. If 1.00 g of an unknown molecular compound contains 8.35 x 1021 molecules, what is its molar mass?
72.12g/mol
hp
Transcribed Image Text:atain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing 7. Naphthalene, the active ingredient in one variety of mothballs, is an organic compound that contains carbon and hydrogen only. Complete combustion of a 20.10 mg sample of naphthalene in oxygen yielded 69.00 mg of CO2 and 11.30 mg of H20. Determine the empirical formula of naphthalene. (Naphthalene C10H8 and empirical formula CSH ) 8. Xylene, an organic compound has molar mass 106.16 g/mol, is a major component of many gasoline blends, contains carbon and hydrogen only. Complete combustion of a 17.12 mg sample of xylene in oxygen yielded 56.77 mg of CO2 and 14.53 mg of H20. Determine the empirical and molecular formula of xylene. (The empirical formula is C4H5. The molecular formula of xylene is actually CsH10-) 9. Epsom salts is a hydrated ionic compound with e formula MgSO4 · XH2O. A 9.86g sample of Epsom salts was heated to drive off the water of hydration. The mass of the sample after complete dehydration was 4.82g. M8SO4-7H20 10. If 1.00 g of an unknown molecular compound contains 8.35 x 1021 molecules, what is its molar mass? 72.12g/mol hp
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 4 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY