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Papessa [141]
3 years ago
14

Answering the following questions will help you focus on the outcomes of the experiments.

Chemistry
1 answer:
Afina-wow [57]3 years ago
6 0

Answer:

ex.1

1.The water in the test tube expands as it is heated. There is only one direction to expand in, the glass tube. This glass tube is narrow so that a small change in volume will result in a considerable change in height; your signal is amplified. This is the same phenomenon as in thermometers with a glass bulb on the lower end.

2. there will be a thermal expansion will happened.

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A solution is made by dissolving 0.656 mol of nonelectrolyte solute in 869 g of benzene. calculate the freezing point, tf, and b
solmaris [256]
Answer is: the freezing point is 1.63°C and boiling point is 82.01°C.<span>.

1) n(</span><span>nonelectrolyte solute) = 0.656 mol.
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m(C₆H₆) = 0.869 kg.<span>
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2) ΔT = Kf(benzene) · b(solution).
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Tf = 1.63°C.
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3) ΔTb = Kb(benzene) · b(solution).
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