Ask question

Ask question

All categories

3 years ago

8

the volume of a gas is 450 mL when its pressure is 1.00 atm. If the temperature of the gas does not change, what is the pressure

when its volune is changed to 2.00 L

2 answers:

horsena [70]3 years ago

6 0

Answer:

0.225 atm

Explanation:

sladkih [1.3K]3 years ago

4 0

P1V1 = P2V2
P1 = 1.00 atm, V1 = 450 mL × (1L)/(1000mL) = 0.45 L, P2 = 2.00 atm
(1)(0.45) = (2)V2
V2 = .45/2 = 0.225 L, or 225 mL

You might be interested in

When 9.2 g of frozen N2O4 is added to a 0.50 L reaction vessel and the vessel is heated to 400 K and allowed to come to equilibr

Amanda [17]

<u>Answer:</u> The value of $K_c$ for the given reaction is 1.435

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}$

Given mass of $N_2O_4$ = 9.2 g

Molar mass of $N_2O_4$ = 92 g/mol

Volume of solution = 0.50 L

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{9.2g}{92g/mol\times 0.50L}\\\\\text{Molarity of solution}=0.20M$

For the given chemical equation:

$N_2O_4(g)\rightleftharpoons 2NO_2(g)$

<u>Initial:</u> 0.20

<u>At eqllm:</u> 0.20-x 2x

We are given:

Equilibrium concentration of $N_2O_4$ = 0.057

Evaluating the value of 'x'

$\Rightarrow (0.20-x)=0.057\\\\\Rightarrow x=0.143$

The expression of $K_c$ for above equation follows:

$K_c=\frac{[NO_2]^2}{[N_2O_4]}$

$[NO_2]_{eq}=2x=(2\times 0.143)=0.286M$

$[N_2O_4]_{eq}=0.057M$

Putting values in above expression, we get:

$K_c=\frac{(0.286)^2}{0.143}\\\\K_c=1.435$

Hence, the value of $K_c$ for the given reaction is 1.435

6 0

3 years ago

According to the following reaction, how many moles of carbon dioxide will be formed upon the complete reaction of 22.7 grams of

AnnZ [28]

T7otf7ofttttttttttt7of7of57od5f7ofo 7dif

7 0

3 years ago

How the water cycle functions because of change in matter.

kap26 [50]

Well, the only way you would get clouds is evaporation, a liquid to a gas. (Change of matter) the clouds would not turn into rain without percipitation, gas to water. (Change of matter.)

6 0

3 years ago

Read 2 more answers

0.035 moles of a compound are found in an erlen meyer flask. Determine its mass molecular weight of the compound if the mass is

Goshia [24]

Answer:

100

Explanation:

M = mass/ number of mole

M = 3.5 g/0.035 mol = 100 g/mol - molar mass

6 0

3 years ago

Why is it better to use deionized water in chemistry experiments

Leno4ka [110]

Answer:

Laboratories use both distilled water and deionized water as controls in experiments. Deionization removes only non-charged organic matter from the water.

Explanation:

Distilled water removes even more impurities than deionization does, if the water undergoes a filtering process before boiling and distillation.

6 0

3 years ago