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3 years ago

Metamorphism can best be defined as

Chemistry

1 answer:

Brilliant_brown [7]3 years ago

5 0

Answer:

The answer is D if it's wrong let me know pls

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A saturated solution was formed when 5.16×10−2 L of argon, at a pressure of 1.0 atm and temperature of 25 ∘C, was dissolved in 1

liraira [26]

Answer:

The Henry's law constant for argon is $k=2.11*10^{-3}\frac{ M}{atm}$

Explanation:

Henry's Law indicates that the solubility of a gas in a liquid at a certain temperature is proportional to the partial pressure of the gas on the liquid.

C = k*P

where C is the solubility, P the partial pressure and k is the Henry constant.

So, being the concentration $C=\frac{ngas}{V}$

where ngas is the number of moles of gas and V is the volume of the solution, you must calculate the number of moles ngas. This is determined by the Ideal Gas Law: P*V=n*R*T where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. So $n=\frac{P*V}{R*T}$

In this case:

P=PAr= 1 atm
V=VAr= 5.16*10⁻² L
R=0.082 $\frac{atm*L}{mol*K}$
T=25 °C=298 °K

Then:

$n=\frac{1 atm*5.16*10^{-2} L}{0.082 \frac{atm*L}{mol*K} *298K}$

Solving:

n= 2.11 *10⁻³ moles

So: $C=\frac{ngas}{V}=\frac{2.11*10^{-3} moles}{1 L} =2.11*10^{-3} \frac{moles}{L}= 2.11*10^{-3} M$

Using Henry's Law and being C=CAr and P =PAr:

2.11*10⁻³ M= k* 1 atm

Solving:

$k=\frac{2.11*10^{-3} M}{1 atm}$

You get:

$k=2.11*10^{-3}\frac{ M}{atm}$

The Henry's law constant for argon is $k=2.11*10^{-3}\frac{ M}{atm}$

5 0

3 years ago

Explain preparation of alkanes C--C from industrial source for industrial preparation of alkane

Dmitrij [34]

Alkanes can be prepared from carboxylic acid via the removal of carbon dioxide. This process is known as decarboxylation. It produces alkane with a carbon atom lesser than that present in the carboxylic acid.

4 0

2 years ago

Is a hollow tube that serves as passageway of air into the luns

KIM [24]

Answer:

The air that we breathe in enters the nose or mouth, flows through the throat (pharynx) and voice box (larynx) and enters the windpipe (trachea). The trachea divides into two hollow tubes called bronchi

Explanation:

7 0

2 years ago

CHEM

castortr0y [4]

Molarity = moles / liter

a) M = 2/4 = 0.5 M

b) Moles = 4/(30 + 16 + 1)
= 0.085
M = 0.085 / 2 = 0.0425 M

c) Moles = 5.85 / (23 + 35.5)
= 0.1
M = 0.1 / 0.4
= 0.25 M

3 0

3 years ago

Read 2 more answers

A device that does work with only one movement is a simple machine true or false

Rainbow [258]

Answer:

true

Explanation:

8 0

3 years ago