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
SSSSS [86.1K]
2 years ago
9

A sample of oxygen gas (O2) has a volume of 7.51 L at a temperature of 19°C and a pressure of 1.38 atm. Calculate the moles of O

2 molecules present in this gas sample.
Chemistry
1 answer:
Maslowich2 years ago
8 0

Answer: 0.43molO₂

Explanation:

The ideal gas law for moles is n=\frac{PV}{RT}. If you did not know, R is the ideal gas constant, 0.0821\frac{L*atm}{mol*K}.

Since the temperature must be in Kelvin, we must convert our given temperature from ℃ to K. 19C+273=292K

Now that we have the temperature converted to Kelvin, we can plug in our information to the ideal gas law for the number of moles.

n=\frac{PV}{RT}

n=\frac{1.38atm*7.51L}{0.0821\frac{L*atm}{mol*K} *292K} =0.43molO_{2}

n=0.43molO_{2}

Therefore, the number of moles is 0.43molO₂.

I hope this helps! Pls mark brainliest!! :)

You might be interested in
What is the purpose of the scientific method?
Umnica [9.8K]

Answer:

The Scientific Method helps you put together experiments, use data to find conclusions and interpret them.

Explanation:

pls brainliest thank you

7 0
3 years ago
According to the VSEPR theory, a molecule or ion of NH₃ will have a _____ shape.
Elan Coil [88]

Answer:

B) flat trigonal

Explanation:

All the Hydrogen atoms are arranged symmetrically around the Nitrogen atom which forms the base, and the two nonbonding electrons form the tip

4 0
3 years ago
Read 2 more answers
Why is methane, CH4, a nonpolar compound?
Tom [10]
Each covalent H bond is nonpolar.
6 0
3 years ago
Read 2 more answers
How do you determine the number of protons in an element
QveST [7]

Answer:

You determine the number of protons by its atomic number, just like electrons.

I am joyous to assist you anytime.

3 0
4 years ago
What does a ground wire do?
alexgriva [62]

Answer:

A ground wire helps those positive charges get to the ground in a safe, direct and controlled way, where they can be discharged without the risk of electrical shock or fire. Shock Absorber Excess electrical charges are common in any home.

Explanation:

:3

6 0
3 years ago
Other questions:
  • How many moles are in 1.00 Kg Fe?
    10·1 answer
  • A reaction requires 15.0 g of ammonium chloride. What volumeof a
    6·1 answer
  • Why is the half-life of a radioisotope important for radioactive dating?
    12·2 answers
  • What was discovered first helium or samarium?
    11·1 answer
  • A 300.0 mL saturated solution of copper(II) peroidate, Cu(IO4)2, contains .30 grams of dissolved salt. Calculate Ksp.
    7·1 answer
  • Dyfuzja co to jest i na czym polega
    12·1 answer
  • The structure of carbon dioxide using dots and crosses​
    14·1 answer
  • A plate of an alloy steel has a plane-strain fracture toughness of 50 MPa-m1/2. If it is known that the largest surface crack is
    15·1 answer
  • If 5 J (joules) of electrical energy is used to power an iron, how many joules of heat and steam should it be transformed into?
    14·1 answer
  • A glass tube contains mercury. What would be the height of the column of mercury which would create pressure equal to 1.00 atm
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!