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Percent Of Water In Hydrated Salt Lab Report

1291 Words6 Pages

Experiment: EXP5-Percent of Water in Hydrated Salt

Manika Srivastava
Lab Partner: Natasha Seebaran
Chem 1300/DA3
Date: 1/30/18
Professor Richard H. Perry

Abstract: The purpose of this experiment was to determine the percent by mass of water in a hydrated salt as well as learn to handle a laboratory apparatus without touching it. The mass of water lost in grams for trials 1 and 2 are 1.7220g and 1. 2993g.For trails 1 and 2 the percent by mass of volatile water in hydrated salt came out to be 57.4% and 43.2%. This resulted in the average percent of H2O in hydrated salt is 50.3%.

Introduction:
The Main Purpose of this experiment was to determine the percent by mass of water in the hydrated salt. The second purpose was to …show more content…

Mass of Hydrated salt = Mass of fired crucible, lid and Hydrated salt – Mass of fired crucible and Lid.
• Trial 1 = 56.3320- 53.3320 = 3
 Trial 1 mass of Hydrated Salt = 3g
• Trial 2 = 56.0963-53.008=3.0075
 Trial 2 mass of Hydrated Salt = …show more content…

We fired and massed the crucible, lid, and hydrated salt four different times to evaporate the amount of water in the hydrated salt. This resulted in a change in mass which could be used to determine the percent of water in the hydrated salt. The purpose of firing and measuring the just the crucible and lid is to determine the initial mass of the crucible without the salt. Between trials, the crucibles mass changed decreased by

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