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
dmitriy555 [2]
3 years ago
14

If a gas is cooled from 425.0K to 275.15K and the volume is kept constant what final pressure would result if the original press

ure was 770.0 mm Hg?
Chemistry
1 answer:
mr Goodwill [35]3 years ago
4 0

Answer: 498.51mmHg

Explanation:

First let us analyse what was given from the question:

T1 = 425K

T2 = 275.15K

P1 = 770 mmHg

P2 =?

Using the general gas equation

P1V1/T1 = P2V2/T2

But we were told from the question that the volume is constant. So, our equation becomes:

P1/T1 = P2/T2

770/425 = P2 /275.15

Cross multiply to express in linear form:

P2 x 425 = 770 x 275.15

Divide both side by 425, we have:

P2 = (770 x 275.15) /425

P2 = 498.51mmHg

You might be interested in
Which acid is the best choice to create a buffer with ph= 3.19?
Crazy boy [7]
<span>The best choice is hypochlorous acid nitrous acid (HNO2) because it has the nearest value of pK to the desired pH.
pKa of </span>nitrous acid<span> is 3.34 
If we know pKa and pH values,  we can calculate the required ratio of conjugate base (NO2⁻) to acid (HNO2) from the following equation:
pH=pKa + log(conc. of base)/( conc. of acid)
</span><span>3.19=3.34 + log c(NO2⁻)/c(HNO2)
</span><span>3.19 - 3.34 = log c(NO2⁻)/c(HNO2)
-0.15 = log c(NO2⁻)/c(HNO2)
c(NO2⁻)/c(HNO2) = 10⁰¹⁵ = 1.41

</span>
5 0
4 years ago
Select the true statements about eicosanoids. a. Eicosanoids are broken down within seconds to inactive residues. b. Arachidonic
Evgen [1.6K]

Answer: the true statements about eicosanoids includes options A,B,D,E

Explanation:

EICOSANOIDS are mostly produced from the precursor arachidonic acid, a C20 polyunsaturated fatty acid. They are broken down within seconds to inactive residues after synthesis.High concentrations of eicosanoids are necessary for effective action.The three major types of eicosanoids includes:

-prostaglandins,

- thromboxanes, and

- leukotrienes.

Depending on the above types mentioned, they play a role in inflammation, pain, fever promotion, blood pressure regulation, and blood clotting. They also influence the immune response and certain respiratory and reproductive processes.

However, eicosanoids are NOT transported in the blood stream to their site of action RATHER they exert their effects on the tissue where they are synthesized.

6 0
3 years ago
What is alcohol made from?
jok3333 [9.3K]
 <span>In chemistry, an alcohol is any organic compound in which the hydroxyl functional group (?OH) is bound to a saturated carbon atom.</span>
5 0
3 years ago
You perform a single extraction with 100 mL of chloroform to remove compound A from 100 mL of an aqueous solution. The partition
Mice21 [21]

Answer:

Percentage of mass of solute in aqueous phase is 28.57%.

Explanation:

(q)_{aq}- Fraction of solute in aqueous phase.

(q)_{aq}=\frac{V_{aqueous}}{DV_{organic}+V_{aqueous})}

V_{aqueous} = Used volume of aqueous solution

V_{organic} = Used volume of organic solution

D = partition coefficient.

(q)_{aq}=\frac{100ml}{(2.5\times100)+100\,ml}=0.2857

Mass of solute in aqueous phase = 0.2857\times 5g=1.428g

Mass\,percentage = \frac{1.428}{5.0}\times 100=28.57

Therefore, Percentage of mass of solute in aqueous phase is 28.57%.

5 0
3 years ago
An engineering company needs to solve a design problem. It is designing a high-speed train to transport passengers between Bosto
gregori [183]

Answer:

d

Explanation:

5 0
3 years ago
Other questions:
  • What volume of 0.550 M KBr solution can you make from 100.0 mL of 2.50 M KBr?
    11·2 answers
  • What are two key characteristics of a good scientific investigation
    14·1 answer
  • At which stage does a gas form in a gas formation reaction?
    11·1 answer
  • Determine the number of moles. 2.4x10^24 atoms of Fe
    8·1 answer
  • Chromium-51 is a radioactive isotope used to label red blood cells to identify if they remain intact in the body. It has a half-
    10·1 answer
  • How do water molecules in the solid phase compare with water molecules in the gaseous phase?
    14·1 answer
  • Mr.Green works as the art teacher at Hamburg Summer Day Camp. 600 campers participate in the camp every day. Yesterday Mr.Green
    10·1 answer
  • The following reactions can be used to prepare samples of metals. Determine the enthalpy change under standard state conditions
    12·1 answer
  • Alpha decay please help (nuclear chemisty)
    6·1 answer
  • What does the entropy of a reaction describe?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!