1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ede4ka [16]
3 years ago
13

Find the volume of a gas at STP, if its volume is 80.0 mL at 109 kPa and -12.5°C.​

Chemistry
2 answers:
ipn [44]3 years ago
8 0

<u>Answer:</u> The volume when the pressure and temperature has changed is 90.21 mL

<u>Explanation:</u>

<u>At STP:</u>

The temperature at this condition is taken as 273 K

The pressure at this condition is taken as 1 atm or 101.3 kPa.

To calculate the volume when temperature and pressure has changed, we use the equation given by combined gas law.

The equation follows:

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1,V_1\text{ and }T_1 are the initial pressure, volume and temperature of the gas

P_2,V_2\text{ and }T_2 are the final pressure, volume and temperature of the gas

We are given:

P_1=101.3kPa\\V_1=?mL\\T_1=273K\\P_2=109kPa\\V_2=80.0mL\\T_2=-12.5^oC=[-12.5+273]K=260.5K

Putting values in above equation, we get:

\frac{101.3kPa\times V_1}{273K}=\frac{109kPa\times 80}{260.5K}\\\\V_1=\frac{109\times 80\times 273}{101.3\times 260.5}=90.21mL

Hence, the volume when the pressure and temperature has changed is 90.21 mL

exis [7]3 years ago
5 0

Answer:

= 913.84 mL

Explanation:

Using the combined gas laws

P1V1/T1 = P2V2/T2

At standard temperature and pressure. the pressure is 10 kPa, while the temperature is 273 K.

V1 = 80.0 mL

P1 = 109 kPa

T1 = -12.5 + 273 = 260.5 K

P2 = 10 kPa

V2 = ?

T2 = 273 K

Therefore;

V2 = P1V1T2/P2T1

     = (109 kPa × 80 mL × 273 K)/(10 kPa× 260.5 K)

     <u>= 913.84 mL</u>

You might be interested in
Two identical 732.0 L tanks each contain 212.0 g of gas at 293 K, with neon in one tank and nitrogen in the other. Based on the
Vladimir [108]

Answer: (a) Neon, Nitrogen; (b) Neon, Nitrogen; (c) Neon is lower than Nitrogen; (d) It doesn't affect;

Explanation: The kinetic-molecular theory studies the behavior of particles under pre-determinated situation. In cases of gases, the particles moving around colliding with each other and the walls of the container, without loss of energy. In the case in question, all the parameters are the same (same temperature, volume and pressure), except for the gases, which has different molar masses. In this sense, Neon has lower average speed due to its molar mass being higher, which means, its particles moves slower for being heavier. Related to pressure, as velocity is lower, it collides less with the walls of the tank, and so pressure is lower. For density, it doesn't affect the behavior of the system nor the kinetic energy.

7 0
3 years ago
12.2 scientific notation
Nadya [2.5K]

This would be 1.22 x 10^1

You simply move the decimal.

If this helped you, please list me as brainliest!

3 0
3 years ago
What is the usual charge on an ion formed from an atom that originally had seven valence electrons?
motikmotik
Negative because it'll have to gain an electron
4 0
2 years ago
Read 2 more answers
NEED HELPPP PLSSSSSSSSSS
Leto [7]
I would pick the first option in the third option
4 0
2 years ago
After observing (you can repeat the process more than once), write a general statement explaining how reducing the volume change
ad-work [718]

Answer:

The correct answer is that both molecular motion, pressure and temperature increase as volume reduces.

Explanation:

A reduction in volume changes the molecular motion, temperature and pressure of the system. When the volume of the container decreases, this causes the pressure to increase, the temperature to increase and the molecular motion to increase. This is because a liquid and a solid are incompressible, so by reducing the volume of a gas, the molecules increase their movement as the temperature of the system increases, which is due to the increased pressure applied to reduce the volume of the system.

Have a nice day!

4 0
2 years ago
Other questions:
  • How many grams of iron, Fe, are reacted to form 16.0 grams of FeS (87.91 g/mol)
    11·2 answers
  • Real images can be projected onto a screen.<br> A. True<br> B. False
    13·1 answer
  • Can light pass through water?
    7·2 answers
  • Materials that cannot carry electric energy are called
    11·1 answer
  • Volcanoes located at subduction zones tend to release lava high in?
    11·2 answers
  • How many moles are in 8.0 gram sample of C3H4
    7·1 answer
  • Please help me with this! I’ll mark you brainiest if it’s correct.<br> I do know it’s either A or C
    8·2 answers
  • An object has a mass of 40 grams and a volume of 20 ml. What is the object's density?
    14·1 answer
  • Draw a heating curve for 1 mole of methanol beginning at 170K and ending at 350K. Assume that the values given here are constant
    11·1 answer
  • In each pair, choose the larger of the indicated quantities or state that the samples are equal:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!