AIM
To determine the percent composition of a sand and salt mixture.
EQUIPMENT
‡ 250 ml beaker (an extra beaker to put under the funnel to collect the salty water)
‡ sand and...
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To determine the amount of sulfur (as sulfate) in a sample of lawn food.
Introduction
As sulfates easily form precipitates with suitable metal cations, a gravimetric method based on this feature is ...
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