The conversion of 1 mole of water at 0°c to 1 mole of ice at 0°c releases 6.01 kj. what must be true about the heat absorbed dur
2 answers:
Answer: it must be 6.01 kJ.
Explanation:
Latent heat of freezing is the amount of heat released to convert 1 mole of liquid to 1 mole of solid at atmospheric pressure.
Given: latent heat of freezing is 6.01 kJ.
Latent heat of fusion is the amount of heat required to convert 1 mole of solid to 1 mole of liquid at atmospheric pressure. If latent heat of freezing is 6.01 kJ, latent heat of fusion will be same but the heat will be absorbed.
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Complete Question
Magnesium sulfate forms a hydrate with the formula . What is the maximum amount of water (in grams) that can be removed from 15 ml of toluene by the addition of 200 mg of anhydrous magnesium sulfate? The molar mass of
is 120.4 g/mol; H20 = 18 g/mol.
Answer:
The value is of
Explanation:
From the question we are told that
The volume of toluene is
The mass of anhydrous magnesium sulfate is
The formula of the hydrate is
The molar mass of is
From the formula given we see that
1 mole of wil remove 7 moles of
to for the given formula
Hence
120.4 g (1 mole) will remove 7 moles (7 * 18 g = 126 g ) of to for the given formula
Therefore 1 g of x g of
So
=>
From our calculation we obtained that
1 g of will remove
of
Then
of
will remove z g of
of
So
=>
=> of