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worty [1.4K]
2 years ago
6

Using the solubility curves, approximately how many grams of NaNO3 can be dissolved in 100. grams of water at 80 °C?

Chemistry
2 answers:
cestrela7 [59]2 years ago
5 0

Answer:

Answer is B

Explanation:

postnew [5]2 years ago
5 0

Answer:

As temperature increases, its solubility increases as well. Notice, however, that it does not increase significantly. In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C .

You can determine how many grams of sodium chloride, commonly known as table salt, can be dissolved in

100 g

of water at

80

∘

C

by taking a look at its solubility graph.

A substance's solubility graph tells you how its solubility changes, let's say starting from room temperature, when temperature is either decreased or increased.

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Determine the temperature of 1.42 mol of a gas contained in a 3.00-L container at a pressure of 123 kPa.
Schach [20]

Answer:

31.2K

Explanation:

The following data were obtained from the question:

n = 1.42 mol

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P = 123 kPa = 123000Pa

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Using the ideal gas equation PV = nRT, we can obtain the temperature as follows:

PV = nRT

T = PV/nR

T = (1.21 x 3)/(1.42 x 0.082)

T = 31.2K

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saveliy_v [14]
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