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Tanzania [10]
3 years ago
9

Why is density a property but mass and volume is not a property?

Chemistry
1 answer:
inysia [295]3 years ago
4 0

Answer:

Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance's chemical identity.

Explanation:

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An example of a double comparison is _____.
andriy [413]
The answer is C. more better. Like I'm better everyday :D


GIVE ME MORE QUESTIONS FOR MORE POINTS PLEASE :D
have a nice day :) happy new year
4 0
3 years ago
Use the fact that to determine how much the pressure must change in order to lower the boiling point of water by a small amount
erma4kov [3.2K]

Complete Question

Use the fact that d\mu=\frac{V}{N}dp-\frac{s}{N}dT to determine how much the pressure must change in order to lower the boiling point of water by a small amount 3.20e-01 K. You may assume that the entropy and density of the liquid and gas are roughly constant for these small changes. You may also assume that the volume per molecule of liquid water is approximately zero compared to that of water vapor, and that water vapor is an ideal gas. Useful constants: Atmospheric pressure is 101300 Pa The boiling point of water at atmospheric pressure is 373.15 K The entropy difference between liquid and gas per kilogram is 6.05e 03 J/kgK The molecular weight of water is 0.018 kg/mol. (a) 0.00e 00 Pa (b) 1.14e 03 Pa (c) 6.85e 26 Pa (d) 4.24e 05 Pa (e) 3.81e 28 Pa

Answer:

Correct option is B

Explanation:

From the question we are told that:

Given Equation d\mu=\frac{V}{N}dp-\frac{s}{N}dT

Change of boiling point \triangle H=3.20e-01 K

Generally the equation for Change in time is mathematically given by

  d\mu=\frac{V}{N}dp-\frac{s}{N}dT

  dp=\frac{s}{v}dT

Where

    s=Entropy\ difference *molar\ weight

    s=6.05*10^3*0.018j/mol.k

And

    V=\frac{RT}{P} (from ideal gas equation)

Therefore

 dp=\frac{Ps}{RT}dT

 dp=\frac{101300*6.05*10^3*0.018}{8.314*373.15}3.20*10^{-1}

 dp=1137.873pa

 dp=1.14e 03 Pa

Therefore correct option is B

4 0
3 years ago
Chemistry course is intended for what type of students?
yulyashka [42]

Answer:

Chemistry course is intended for students who did not take chemistry in high school or who struggled with high school chemistry.

Explanation:

4 0
3 years ago
There are 64 pretzels in a 16-ounce bag how many proportion would be in a 5-ounce bag?
qwelly [4]

Answer:

20 pretzels.

Explanation:

So in the first bag there at 64 pretzels in 16-ounces.

We can divide both these numbers by 16, to get 4 pretzels per ounce.

If we multiply both numbers by 5, we get 20 pretzels per ounces.

So, 20 pretzels i5-ounce bag.

3 0
3 years ago
(Paper Chromatography)
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2. Water can be used to carry salts since salts are soluble in water.
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4 years ago
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