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Question
A student is performing an experiment where a blue salt is being heated to dryness in order to determine the percent of water in the salt. Which pieces of laboratory equipment would be used to help determine this percentage?
i. A crucible and cover
ii. Tongs
iii. A triple beam balance
A student is performing an experiment where a blue salt is being heated to dryness in order to determine the percent of water in the salt. Which pieces of laboratory equipment would be used to help determine this percentage?
i. A crucible and cover
ii. Tongs
iii. A triple beam balance
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Solution
The correct option is C i. ii and iii
In this experiment, a known mass of hydrated copper(II) sulfate is heated to remove the water of crystallization and then weigh into it between 2 g and 3 g of hydrated copper(II) sulphate.A deep blue copper compound is made white through the addition of heat.So the apparatus needed is crucible,cover,tongs and triple beam balance.
In this experiment, a known mass of hydrated copper(II) sulfate is heated to remove the water of crystallization and then weigh into it between 2 g and 3 g of hydrated copper(II) sulphate.A deep blue copper compound is made white through the addition of heat.So the apparatus needed is crucible,cover,tongs and triple beam balance.
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