If Epsom salt, MgSO45H2O, is heated to 250°C, all the water of hydration is lost. A student heats a 1.687 gram sample of the hydrate (MgSO4 5H2O) for 10 minutes at 250°C. After heating, 0.901 grams of MgSO4 remains. a. Calculate how many molecules of water per one MGSO4 formula unit the student experimentally determined. (MgSO4xH2O and find x). b. What was the student's percent error? c. Was the student's sample of MgSO4 5H2 2O pure? Explain.

If Epsom salt, MgSO45H2O, is heated to 250°C, all the water of hydration is lost. A student heats a 1.687 gram sample of the hydrate (MgSO4 5H2O) for 10 minutes at 250°C. After heating, 0.901 grams of MgSO4 remains. a. Calculate how many molecules of water per one MGSO4 formula unit the student experimentally determined. (MgSO4xH2O and find x). b. What was the student's percent error? c. Was the student's sample of MgSO4 5H2 2O pure? Explain.

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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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

If Epsom salt, MgSO45H2O, is heated to 250°C, all the water of hydration is lost. A
student heats a 1.687 gram sample of the hydrate (MgSO4 5H2O) for 10 minutes at
250°C. After heating, 0.901 grams of MgSO4 remains.
a. Calculate how many molecules of water per one MGSO4 formula unit the student
experimentally determined. (MgSO4xH2O and find x).
b. What was the student's percent error?
c. Was the student's sample of MgSO4 5H2
2O pure? Explain.

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