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vitfil [10]
3 years ago
5

Which of the following changes would decrease the rate at which a solid solute dissolves in a liquid solvent?

Chemistry
2 answers:
Fed [463]3 years ago
4 0

Answer:

The correct answer would be B. Decreasing surface area.

Explanation:

It would be decreasing because the surface area is dissolving, so the surface area is decreasing.

andriy [413]3 years ago
3 0

Answer:

Decreasing surface area of the solid in the liquid.

Explanation:

I don't know how to explain this without using. an example. So, here it is: If you were dipping bread in water, the bread would be completely soaked if you dipped the whole thing, but if you only allowed one part of the bread to be in the water, it would take longer for the water to soak all the way into it. The amount of surface area that is allowed to touch what is making the solid dissolve determines how quickly the whole thing will be dissolved.

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Mamont248 [21]

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hope this helps

5 0
3 years ago
Write 2.0 x 10^-3 in standard notation.
vfiekz [6]

Answer:

20^-4

Explanation:

8 0
3 years ago
At what temperature (in °C) would one liter of phosphine gas, PH3, have a mass of 1.725 g, if the gas pressure is 0.9910 atm? As
Nutka1998 [239]

Answer:  Temperature of one liter of phosphine gas with a mass of 1.725 g and gas pressure of 0.9910 atm is -36^0C

Explanation:

According to the ideal gas equation:

PV=nRT

P = Pressure of the gas = 0.9910 atm

V= Volume of the gas= 1.0 L

T= Temperature of the gas in kelvin = ?

R= Gas constant =0.0821Latm/Kmol

n=  moles of gas= \frac{\text {given mass}}{\text {molar mass}}=\frac{1.725g}{34g/mol}=0.051ol

0.9910atm\times 1.0=0.051\times 0.0821\times T

T=236.7K=(236.7-273)^0C=-36.3^0C

Thus the temperature (in °C) of one liter of phosphine gas with a mass of 1.725 g and gas pressure of 0.9910 atm is -36.3^0C

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4 years ago
Why is oxygen an element?
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What properties do molecules have that allow them to cross the bilayer without any help?
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