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
tino4ka555 [31]
3 years ago
11

Help please chemistry will give brainliest

Chemistry
2 answers:
Jlenok [28]3 years ago
6 0

Answer:

Explanation:

The Ideal Gas Law states that PV=nRT.

Rearrange that into P/n=RT/V.

In this case, the cylinder is rigid so the volume, V, does not change.

Temperature does not change either.

Out of 450 grams of gas, 150 grams leak out. So only 450-150 = 300 grams is left.

n is number of moles which is dependent on mass:

n1/n2 = 450/300 = 3/2

P1/n1 = RT/V = P2/n2

P2 = P1/n1*n2

= 7.2/3*2

= 4.8 atmosphere

Sauron [17]3 years ago
4 0

Answer:

Explanation:

100 grams of the gas leak out

no. of molecules before n after = 450/(450-100)

= 450/350

= 9/7

vol n temp are constant

so P (before)/P(after) = no. of molecules before n after = 9/7

P(after) = P(before) * 7/9

= 7.2*7/9

= 5.6atm

You might be interested in
Glven 4.62 mol of sodium hydroxide, NaOH, how many grams are present?
Vaselesa [24]
1 mole is equal to 1 moles NaOH, or 39.99711 grams.
Hope this helped
3 0
3 years ago
Which factor below does not affect how fast a solute dissolves in a solvent?
Anit [1.1K]
Stirring this is because the three elements are factors affecting dissolving of a solvent. Eg temprature affects in hotness or coldness, Particle size affects whether it is big or small while quantity of soluble affects by the amount
3 0
3 years ago
Read 2 more answers
Balance the following chemical equation by providing the correct coefficients fe+h2so4 fe(so4)3 + h2
Dmitriy789 [7]

Answer:

2Fe + 3H2SO4 + Fe2(SO4)3+ 3H2

Explanation:

1. Fe (SO4) 3 is an incorrectly written formula because iron is trivalent as we can see by this three ahead of SO4. SO4 is divalent always.

2. since (SO4) is 3, this three shows us that there must be 3 in the reactants as well.

so now there is 3H2SO4

3. Since we have added 3 to one hydrogen we must add another. So now it's 3H2

4. and finally iron. In Fe2 (SO4) 3 we see this 2 in front of Fe which means it goes 2Fe.

3 0
2 years ago
What is the change in the freezing point of water when 68.5 g of sucrose is
mr Goodwill [35]
The change is that the water will freeze to 0 or minus I don’t know as I’m not to sure
7 0
3 years ago
Read 2 more answers
Which of the following is a measurement of an object's mass?
Brilliant_brown [7]

Answer:

10 Kilograms

Explanation:

"millimetres" is a unit of measurement and is used for measuring distances.

"newton" is a unit of weight and is used to represent the weight of an object

:kilograms" is the one used for measuring mass

5 0
3 years ago
Other questions:
  • If you were in a completely dark room, the room would still be "shining" in this type of light:
    7·1 answer
  • How many half-lives have passed when there are 3 times as much daughter isotope as parent isotope?
    10·1 answer
  • At a certain temperature, the Kp for the decomposition of H2S is 0.784. H2S(g)↽−−⇀H2(g)+S(g) Initially, only H 2 S H2S is presen
    13·1 answer
  • How does phosphorus enter the human body?
    11·1 answer
  • Which fossil fuel produces the most carbon dioxide?
    10·1 answer
  • Which statement about subatomic particles is true?
    15·1 answer
  • A chemist determined the boiling point of c8h18 to be 124.1c the actual boiling point is 125.7 what is the percent error
    8·1 answer
  • What type of energy does a ball have when it rolls down a hill?
    9·1 answer
  • 29. Spongebob loves to garden and wants to grow lots of pink flowers for his pal Sandy. He bought a special Flower Power fertili
    8·1 answer
  • I need to write an essay on the help benefits of plants! You do not need to write an entire essay, but I would like points and w
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!