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Reptile [31]
4 years ago
7

A solution is saturated in both nitrogen gas N2 and sodium iodide NaI at 50 degree Celsius. When the solution is cooled to 25 de

gree Celsius, which of the following is most likely to occur?
a. some nitrogen gas bubbles out of solution
b. some sodium iodide will precipitate out of solution
c. Both A and B will happen
d. Nothing will happen
Chemistry
1 answer:
xxMikexx [17]4 years ago
6 0

Answer:

b. some sodium iodide will precipitate out of solution

Explanation:

We know that for salts solubility decreases as the temperature of the solution decreases. So, NaI being a salt, its solubility will surely decrease when the temperature is cooled down to 25°C from 50°C.

Thus,the undissolved sodium iodide will precipitate out of the solution.

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Question 3 (1 point)
Hoochie [10]

Answer:

50 mol

Explanation:

Mass of methane = 800 g

Number of moles of CO₂ produced = ?

Solution:

Chemical equation:

CH₄ + 2O₂      →      CO₂ + 2H₂O

Number of moles of methane:

Number of moles = mass/molar mass

Number of moles = 800 g/ 16 g/mol

Number of moles = 50 mol

Now we will compare the moles of methane and carbon dioxide from balanced chemical equation.

                CH₄        :         CO₂

                   1           :          1

                 50          :        50

4 0
3 years ago
What would be the new volume of a gas if 455 of that gas is cooled from 30.0°C to -80.0°C?
Lapatulllka [165]

Answer:

44555

Explanation:

is the answer

5 0
3 years ago
Read 2 more answers
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ELEN [110]
Is it 8.06?

Or 58.57?

Don't get mad if there wrong!!
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7 0
3 years ago
When does a phyisical change occur?
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6 0
3 years ago
An organism that has been thriving, has died. Which of the following is NOT a cause of its demise? Question 6 options: appropria
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3 years ago
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