should be almost pure white. Obtain an unknown sample of a hydrate. 2. The reaction for the decomposition is as follows: CuSO4 5H2O (s)= => SO2(g) + CuO (s) + 5H2O. sheet and clearly show all calculations. CuSO4 5 H2O(s) + HEAT ---> CuSO4 (s) The mass of the empty test tube was 23.7726 grams. Percent Water in a Hydrate Lab 5 Pre-Lab. 79mm) x- _. " . From its formula, what is the percentage of water in your hydrate? Answer 2) Ahydrate that, Lab 09 - Percent of Water in a Hydrate Pre-Lab Questions Date: Name: - Section: Instructor: - Read the following laboratory experiment and answer the questions below. ; Initially there are five times as many A atoms as there are B atoms. 2. 6. CuSO4 5 H2O(s) + HEAT ----> CuSO4 (s) Record this mass on your Data Table 9. If someone were to tell you that copper sulfate is white, you likely would not believe them. percentage of water in a hydrate- pre lab Flashcards | Quizlet the slower the object. (Show work for credit.) Using a spatula, transfer approximately 2 grams of your unknown hydrate sample into the test tube. a at 4. PDF Determining the Formula of a Hydrate - KVCC it, p 2. 1. Formula mass = 159.62 g/mol + (5 H20)( 18.02 g H20/mol) of the primary material. 1 + 0 + 0 = 1. You must watch this video, read over all SDS for the chemicals you will use, and answer all pre-lab questions before you will be allowed to finish this lab.For digital copies of SDS go to the Flinn Scientific SDS Database: https://www.flinnsci.com/sds/0:00 - Introduction0:41 - Hydrates3:11 - Lab Equipment4:30 - Lab Safety5:39 - Doing the Lab6:42 - Heating the Sample11:01 - After Cooling12:00 - Mass Calculations The gravimetric analysis of this experiment is meant to be quantitative; therefore, all precautions should be made to minimize errors in the analysis. Digication ePortfolio :: General Chemistry (Alexander Antonopoulos) by Alexander P. Antonopoulos at Salve Regina University.
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