3. Another way to calculate the number of waters hydrated to an ionic compound is through it's precent composition. An unknown aluminum sulfate hydrate has the formula Al2(SO4)3 ZH2O. If the entire compound is 8.10% Al by mass, calculate the Z value, or how many water molecules are associated with the aluminum sulfate.

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
3. Another way to calculate the number of waters hydrated to an ionic compound is through it's
precent composition. An unknown aluminum sulfate hydrate has the formula
Al2(SO4)3 ZH20. If the entire compound is 8.10% Al by mass, calculate the Z value, or how
many water molecules are associated with the aluminum sulfate.
Transcribed Image Text:3. Another way to calculate the number of waters hydrated to an ionic compound is through it's precent composition. An unknown aluminum sulfate hydrate has the formula Al2(SO4)3 ZH20. If the entire compound is 8.10% Al by mass, calculate the Z value, or how many water molecules are associated with the aluminum sulfate.
Expert Solution
Step 1

Molecular weight of Al2(SO4)3.ZH2O = 27x2 + (32+16x4)x3 +Z x (2x1+16)

                                                           = 54 + (96x3) + Zx18 = 342+18Z

Now mass % of Al = 8.1 (given)

Or, 

(54 / (342+18Z)) X 100 = 8.1

So, 

Z= 18

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Concentration Terms
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
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