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
Mandarinka [93]
2 years ago
7

A sample of helium gas inside a closed but flexible container occupies a volume of 355mL at 23°C. If the pressure is held consta

nt, to what temperature must the He be raised to cause the container to expand to a final volume of 1.50 L?
Chemistry
1 answer:
guapka [62]2 years ago
6 0

Answer:

978.19° C

Explanation:

P1V1/T1 =P2V2/T2     Since the pressure is constant, this can be written as

V1/T1 = V2/T2      RE-ARRANGE TO

V2 *  T1/V1   = T2       Note:  T must be in Kelvin!!

1.5 L  *  (273.15 + 23)  / (.355 L ) = T2 = 1251.338 K  =978.19 C

You might be interested in
A compound with the empirical formula CH2 was found to have a molar mass of approximately 112 g. Write the molecular formula of
san4es73 [151]

Answer:

C8H10

Explanation:

n (CH2) = 112

n (12 + 1 + 1) = 112

n (14) = 112

n = 8

Molecular Formula: C8H10

6 0
3 years ago
What does Gibbs free energy predict?
7nadin3 [17]

Answer:

D. It predicts whether or not a reaction will be spontaneous.

Explanation:

<em>What does Gibbs free energy (ΔG) predict? .</em>

A. It predicts what the rate of the reaction will be. NO. ΔG is a thermodynamical parameter and it is not related to the kinetics of the reaction.

B. It predicts how high the activation energy is. NO. ΔG is a thermodynamical parameter and it is not related to the kinetics of the reaction.

C. It predicts if entropy will increase or decrease. NO. ΔG depends on the entropy but not the other way around.

D. It predicts whether or not a reaction will be spontaneous. YES. If ΔG < 0 the reaction is spontaneous and if ΔG > 0 the reaction is not spontaneous.

5 0
3 years ago
May someone help me on this
Kamila [148]

Answer:

<h2>The mosquitoes like when its wet and moist than dry temp.</h2>

7 0
2 years ago
What is the concentration of the acid (H2SO4) in the following titration?
lapo4ka [179]
If your options are among the following:
<span>0.64 M 1.0 M 0.32 M 0.16 M.
Then the correct answer is 0.64 M. I hope this is what you were looking for</span>
3 0
3 years ago
Read 2 more answers
1. Most of the earth's surface is covered with
frozen [14]

Answer: water

Explanation:if you look at a globe most of it is blue and blue on a globe is water so that means water covers most of the earth

5 0
3 years ago
Other questions:
  • What is the pH of a 5.4 x 10-3 M HCl solution?<br>A. 2.3<br>B. 3.3<br>C. 3.7<br>D. 11.7​
    8·1 answer
  • The first time scientists actually saw an atom was
    9·1 answer
  • Describe dmitri mendleev 's periodic table ​
    12·1 answer
  • How does the modern periodic table arrange elements?
    15·2 answers
  • Difference between Atom and Molecule <br> In three points
    11·2 answers
  • An example of a synthesis is the Statue of Liberty turning green. Oxygen in the air combines with the copper statue to form copp
    13·2 answers
  • How many grams of KO2 are needed to form 8.0 g of O2?
    13·2 answers
  • Which is a shorter process - (circle one) selective breeding or natural selection?
    6·1 answer
  • An airplane travels 570 mph for 3.5 hours. How far will the airplane travel.
    10·1 answer
  • The ___ is the short form that chemists use to identify an element
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!