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...
Related questions
Question
Mass of Unknown sample is 25.946g, Mass of SiO2 Recovered is 7.8162g, Mass of KNO3 Recovered is 6.2381g, the % CuSO4,5H20 in KNO3 is 0.3%, calculate the mass of purified KNO3 Recovered(add 0.5 grams).
Expert Solution
Step 1
In 6.2381 g the mass of CuSO4.5H20 is (0.3/100)*6.2381 g
= 0.0187 g
The remaining pure KNO3 is = (6.2381-0.0187) g
= 6.121 g
total mass is =6.121+ 0.5 g
= 6.621g
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