Pre Lab Quiz Lab 3 1. A hydrated FeBr2 salt weighing 1.782 g is heated in a crucible until reaching a constant mass. The weight of the anhydrous FeBr2 is 1.437 g. a. Calculate the percent by mass of water in the hydrated FeBr2 salt. b. Calculate the moles of H2O removed from the hydrate. Calculate the moles of anhydrous FeBr2 remaining in the crucible. c.

Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter14: Mixtures And Solutions
Section: Chapter Questions
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Pre Lab Quiz Lab 3
1. A hydrated FeBr2 salt weighing 1.782 g is heated in a crucible until reaching a constant mass. The
weight of the anhydrous FeBr2 is 1.437 g.
Calculate the percent by mass of water in the hydrated FeBr2 salt.
a.
b. Calculate the moles of H20 removed from the hydrate.
Calculate the moles of anhydrous FeBr2 remaining in the crucible.
с.
d. What is the formula of the hydrated FeBr2?
Transcribed Image Text:Pre Lab Quiz Lab 3 1. A hydrated FeBr2 salt weighing 1.782 g is heated in a crucible until reaching a constant mass. The weight of the anhydrous FeBr2 is 1.437 g. Calculate the percent by mass of water in the hydrated FeBr2 salt. a. b. Calculate the moles of H20 removed from the hydrate. Calculate the moles of anhydrous FeBr2 remaining in the crucible. с. d. What is the formula of the hydrated FeBr2?
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