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
igomit [66]
3 years ago
7

A 45 mL sample of nitrogen gas is cooled from 135ºC to 15C in a container that can contract or expand at constant pressure. Wha

t is the new volume of the nitrogen gas?
Chemistry
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

V₂ =31.8 mL

Explanation:

Given data:

Initial  volume of gas = 45 mL

Initial temperature = 135°C (135+273 =408 K)

Final temperature = 15°C (15+273 =288 K)

Final volume of gas = ?

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 45 mL × 288 K / 408 k

V₂ = 12960 mL.K / 408 K

V₂ =31.8 mL

You might be interested in
A solution is made by dissolving 0.0150 mol of HF in enough water to make 1.00 L of solution. At 26 °C, the osmotic pressure of
Alex777 [14]
Given:
M = 0.0150 mol/L HF solution
T = 26°C = 299.15 K
π = 0.449 atm

Required:
percent ionization

Solution:
First, we get the van't Hoff factor using this equation:
π = i MRT
0.449 atm = i (0.0150 mol/L) (0.08206 L atm / mol K) (299.15 K)
i = 1.219367

Next, calculate the concentration of the ions and the acid.
We let x = [H+] = [F-]
[HF] = 0.0150 - x

Adding all the concentration and equating to iM
x +x + 0.0150 - x = <span>1.219367 (0.0150)
x = 3.2905 x 10^-3

percent dissociation = (x/M) (100) = (3.2905 x 10-3/0.0150) (100) = 21.94%

Also,
percent dissociation = (i -1) (100) = (</span><span>1.219367 * 1) (100) = 21.94%</span>
7 0
3 years ago
What is the volume of kristas rock
Elan Coil [88]

Answer:

for what I can see in the picture the volume is 155

Explanation:

7 0
3 years ago
Read 2 more answers
Sound generally travels faster through solids than through gases because the particles (atoms or molecules) of a solid are _____
Tju [1.3M]
Either closer or denser
4 0
3 years ago
Which term names enzymes in the body that speed up chemical reactions? A. catalysts B. cells C. concentrations D. chloroplasts
vazorg [7]
Carbonic anhydrase speeds up<span> the transfer of carbon dioxide from cells to the blood.


Hope this work cuz</span>
8 0
3 years ago
Read 2 more answers
jin has four colorful glass bottles on his windowsill. one is red, one is violet, one is green, and one is yellow. the light tha
Over [174]
The red bottle would have the lowest frequency because red light has the longest wavelengths. The light passing through the violet would have the highest frequency because its wavelengths are the shortest.
4 0
4 years ago
Read 2 more answers
Other questions:
  • What are the partial pressures of NH3 and H2S at equilibrium, that is, what are the values of PNH3 and PH2S, respectively?Enter
    9·1 answer
  • Which of the following electron configurations is correct?
    14·1 answer
  • A chemist heats a sample of hydrated lithium nitrate which weighs 170 grams and finds, after heating that it weighs 95.3 grams.
    8·1 answer
  • 1. A bacterium that can use NO3 - as a terminal electron acceptor is found to contain sulfur granules. This cell . . . A. reduce
    14·1 answer
  • Where do subduction zones occur
    6·1 answer
  • Why is the Hubble telescope located in space? *
    6·1 answer
  • Write application of isotopes .
    12·2 answers
  • What determines how molecules are redistributed in diffusion?​
    13·1 answer
  • PLZZZ HELPPPPPP
    6·2 answers
  • Describe the three possible decisions you can receive from an
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!