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Post-Laboratory Questions (Use the spaces provided for the answers and additional paper if necessary.) 1. Briefly explain whether the following procedural changes would have caused the calculated number
of Waters of hydration in a hydrate sample to be too high, too low, or unaffected. {a} A student washed the crucible, but failed to heat it to dryness prior to weighing it at the start of the
experiment. (13) A student was anxious to finish the experiment and heated the crucible containing the sample with a very hot burner flame, causing a small amount of the solid compound to splatter out of the
crucible. (c) The crucible and sample fell from the ceramic triangle during a third heating. The sample did not
spill, but a small chip broke off the crucible and was lost. 2. (a) Write the chemical equation for the formation of strontium oxalate monohydrate from strontium
oxalate (SI-C200. (bl A 0.500-g sample of SrC204 was used as a desiccant. Calculate the mass of the completely
" , hydrated salt. ’ ating the desiccant form of SrC204 once the salt has been completely

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