The Problem: In this experiment you will be given an unknown mixture of sand and

Question

The Problem:
In this experiment you will be given an unknown mixture of sand and salt. The objective is to
separate the sand from the salt to determine percent composition of salt in the unknown. You
will also conduct statistical analysis of your results compared to results obtained by your lab
mates. The statistical analysis should include average value, deviation from average for each data
point, average deviation and relative average deviation.

Question: What does it mean if the percent salt obtained in the experiment is greater than the actual
value? Less than the expected value?

Explanation / Answer

if the percent salt obtained in the experiment is greater than the actual it means that during the evaporation process some amount of water left with salt so experimental value is greater than actual.

if the percent salt obtained in the experiment is less than the actual it means during evaporation process some salt is decomposed so weight of salt will decrease, resulting experimental value is less than actul value.

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