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3 years ago

How much of a 10 M solution is needed to make 1 liter of a 1 M solution

Chemistry

1 answer:

mylen [45]3 years ago

5 0

Answer:

0.1 L

Explanation:

M₁ × V₁ = M₂ × V₂

10M × V₁ = 1M × 1L

V₁ = 0.1 L

I hope this helps :)

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A chemist prepares a sample of helium gas at a certain pressure, temperature and volume and then removes all but a fourth of the

cupoosta [38]

Answer:

The temperature must be changed to 4 times of the initial temperature so as to keep the pressure and the volume the same.

Explanation:

Pressure in the container is P and volume is V.

Temperature of the helium gas molecules = $T_1$

Molecules helium gas = x

Moles of helium has = $n_1= \frac{x}{N_A}$

PV = nRT (Ideal gas equation)

$PV=n_1RT_1$ ...[1]

After removal of helium gas only a fourth of the gas molecules remains and pressure in the container and volume should remain same.

Molecules of helium left after removal = $\frac{x}{4}$

Moles of helium has left after removal = $n_2= \frac{x}{4\times N_A}$

$PV=n_2RT_2$ ...[2]

$n_1RT_1=n_2RT_2$

$\frac{x}{N_A}\times T_1=\frac{x}{4\times N_A}\times T_2$

$T_1=\frac{T_2}{4}$

$T_2=4T_1$

The temperature must be changed to 4 times of the initial temperature so as to keep the pressure and the volume the same.

6 0

3 years ago

I need help so please help me

Kay [80]

Answer:b

Explanation:

I honestly don’t know if this I right but that would be my guess

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2 years ago

Convert 175 g of H,O into moles.

devlian [24]

Answer:

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The nucleus of isotope A of an element has a larger mass than isotope B of the same elemen

konstantin123 [22]

Answer:

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2 years ago

A certain intermolecular force is created due to a brief concentration of electrons between nonpolar molecules. What best explai

Paladinen [302]

Answer:

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Explanation:

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3 years ago

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