2 years ago

TIMED PLEASE HELP!

Chemistry

2 answers:

EleoNora [17]2 years ago

7 0

This is the actual answer

horsena [70]2 years ago

3 0

Answer:

the other person is wrong! the actual answer is...

Explanation:

You might be interested in

A gas of 3.4 moles occupies a volume of 0.046 L at 298 K. What is the pressure in kPa?

Phantasy [73]

Answer : The correct option is, $2.1\times 10^5kPa$

Explanation :

To calculate the pressure of gas we are using ideal gas equation as:

$PV=nRT$

where,

P = pressure of gas = ?

V = volume of gas = 0.046 L

n = number of moles of gas = 3.4

R = gas constant = 8.314 L.kPa/mol.K

T = temperature of gas = 298 K

Now put all the given values in the above formula, we get:

$P\times (0.046L)=(3.4mol)\times (8.314L.kPa/mol.K)\times (298K)$

$P=1.83\times 10^5kPa\approx 2.1\times 10^5kPa$

Therefore, the pressure of gas is, $2.1\times 10^5kPa$

3 0

3 years ago

Did the subscripts (the little numbers<br>

olga_2 [115]

Hey, you didn’t finish your answer!
Can you finish it so I can help you? Thanks!

4 0

3 years ago

I am new to Chemistry. How would I figure the density of mercury if 205ml has a mass of 2790g

Sati [7]

Density=mass/volume. Put the mass (2790g) over the volume (205mL)

Density= 2790g/205mL
Your answer should be in g/mL.
Hope this helped! :)

3 0

3 years ago

Someone please answer quick. <br><br> How many molecules are in 5.5 mol of a ZnCL2 sample

maw [93]

Answer:

The answer is 136.286.

mr cleann

8 0

2 years ago

Which of the following best describes compounds?

pshichka [43]

I would say A because they are two or more different elements bound chemically together and can only be separated chemically.

8 0

2 years ago

Read 2 more answers

*TIMED PLEASE HELP!*

TIMED PLEASE HELP!