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
vodka [1.7K]
3 years ago
13

A 642 mL sample of oxygen gas at 23.5°C and 795 mm Hg, is heated to 31.7°C and the volume of the gas expands to 957 mL. What is

the new pressure in atm?
Chemistry
1 answer:
malfutka [58]3 years ago
4 0
Let's assume that O₂ is an ideal gas.

We can use combined gas law,
 PV/T = k (constant)

Where, P is the pressure of the gas, V is volume of the gas and T is the temperature of the gas in Kelvin.

For two situations, we can use that as,
P₁V₁/T₁= P₂V₂/T₂

P₁ = <span>795 mm Hg
</span>V₁ = <span> 642 mL
</span>T₁ = (273 + 23.5) K = 296.5 K
P₂ = ?
V₂ = <span>957 mL
</span>T₂ = (273 + 31.7) K = 304.7 K

By applying the formula,

795 mm Hg x 642 mL / 296.5 K = P₂ x 957 mL / 304.7 K
                                              P₂ = 548.07 mm Hg
                                              P₂ = 548 mm Hg
760 mmHg = 1 atm
548 mm Hg = 1 atm x (548 mmHg / 760 mmHg) = 0.721 atm

Pressure of gas = 
548 mm Hg = 0.721 atm
You might be interested in
PLS HELPPPP NOWWWW!!!!
dedylja [7]
When in doubt pick C I don’t really know the answer but I just pick C
8 0
2 years ago
There are many compounds that contribute to the overall aroma of a banana. The primary compound is called isoamyl acetate and co
Murljashka [212]

Explanation:

Let the mass of isoamyl acetate be 100g.

Moles of Carbon = 60.58/12 = 5.048mol

Moles of Hydrogen = 7.07/1 = 7.07mol

Moles of Oxygen = 32.28/16 = 2.018mol

Mole Ratio of C : H : O

= 5.048 : 7.07 : 2.018

= 5 : 7 : 2.

Hence the empirical formula of isoamyl acetate is C5H7O2.

8 0
2 years ago
If 40.5 J of heat is added to a 15.4 g sample of silver, what will the change in temperature be? (Specific heat of silver is 0.2
crimeas [40]

Answer:

623.7

Explanation:

40.5*15.4=623.7

4 0
2 years ago
In this simulation, ___________________ will be used to stimulate the axon.
inysia [295]
Voltage is known to be used as a requirement for stimulating an axon. The axon conducts electrical signals away from the nerve cell. The main function of the axons is that it is specifically used to transmit information, in a form of electrical impulse, to the other parts of the body.
5 0
3 years ago
Hiw to separate and measure a mixture of iron fillings, sugar, and salt
Alecsey [184]
Add water to mixture to dissolve sugar then filter. sugared water will be the filtrate while the salt & iron fillings will be the residue. use magnet to attract iron fillings and remaining will be salt.
3 0
3 years ago
Other questions:
  • A(n) __________ exists to promote the sales of a particular manufacturer's products.
    7·2 answers
  • Which formula represents a polar molecule?<br> (1) Br2 (3) CH4<br> (2) CO2 (4) NH3
    8·1 answer
  • How is the cell cycle important to some unicellular organisms?
    12·1 answer
  • What is the term for the amount of salts in water? Evaporation
    13·2 answers
  • What is the chemical formula for the compound formed between rubidium and iodine?
    14·1 answer
  • Which statement is true of covalent bonds?
    9·1 answer
  • The producer in an energy pyramid contains about 1,000 kcal of energy
    9·1 answer
  • Explain at particle level whether seawater is a pure substance or a mixture
    9·1 answer
  • Am I weird or is no one seeing my qn<br>free point by the way
    12·2 answers
  • Why is a solution not a pure substance?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!