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
Anna11 [10]
2 years ago
8

How many moles of a gas are contained in 2.085 L at STP?

Chemistry
1 answer:
muminat2 years ago
4 0
Answer /-

A.0.0931 mol

from ideal gas equation ,

We have ,

PV = nRT

Where P stands where pressure of gas.
We know that pressure of gas at STP = 1 atm

V stands for volume of gas , given Volume is 2.085 L

R stands for gas constant , R = 0.0821

And T stands for absolute temperature and measured in kelvin,T=273K

Now ,

PV = nRT

n = PV/RT

Refer attachment for working

You might be interested in
What is an atom with 2 protons and 4 neutrons
Katena32 [7]
Helium,it has an atomic mass of 4,which means total no. of protons and neutrons,so I think you meant 2 protons and an atomic mass of 4
7 0
3 years ago
Is sodium benzoate soluble in NaOH, NaHCO3
krek1111 [17]
It is water soluble so is also soluble in aqueous solutions of NaOH or NaHCO3.
6 0
3 years ago
Read 2 more answers
He diagram below represents part of the oxygen cycle.
salantis [7]

Answer:

The answer is C

Explanation:

7 0
3 years ago
Hydrocarbons, compounds containing only carbon and hydrogen, are important in fuels. The heat of combustion of cyclobutane, C4H8
Gennadij [26K]

Answer:

1. C4H8 + 6O2  -----> 4CO2 + 4H20

2. 3836.77 kcal

Explanation:

1. Balanced equation for the complete combustion of cyclobutane:

C4H8 + 6O2  -----> 4CO2 + 4H20

2. Heat of combustion of cyclobutane = 650.3 kcal/mol

    Molecular weight of cyclobutane, C4H8 = 56.1 g/mol

   Mole of C4H8 : mass of cyclobutane/Molecular weight of cyclobutane

  Mole of C4H8 = 331/56.1 = 5.9 mol

Energy released during combustion =  5.9 mol × 650.3 kcal/mol = 3836.77kcal

Therefore the energythat  is released during the complete combustion of 331 grams of cyclobutane is 3836.77kcal

8 0
3 years ago
3. Beta decay is when a proton and ______ are emitted from a neutron.
ziro4ka [17]

Answer:

d. positron

that's the answer brainly tells me I need to write at least 20 characters and that's d u m b.

7 0
3 years ago
Other questions:
  • You are cooking beans over a campfire. By the light of the fire, you read that one serving of beans is 120 calories. After eatin
    5·1 answer
  • Which of the following names the quantity and correctly explains why that represents the astronauts weight
    12·1 answer
  • An 8.5g Ice Cube is placed into 255g water.
    15·2 answers
  • What is the mass of a sample of iron if that sample lost 2300J of heat energy when it cooled from 80 oC to 30°C? The specific he
    11·1 answer
  • A solution of 6.2 M H2SO4 is diluted from 2.0 L to 3.0 L. What is the molarity of the resulting solution?
    13·1 answer
  • HELP ME!!! What is the gravitational potential energy of a 200 Kg wrecking ball that is held up 25 m off the ground?
    14·1 answer
  • Ethyne or acetylene can be hydrogenated to change from the triple bonded C2H2 to the double-bonded C2H4. Adding hydrogens in org
    8·1 answer
  • There are 1.00 mol each of H2 and I2 in a 2.00 L flask. The Kc for this reaction is 55.3. Determine the equilibrium concentratio
    6·2 answers
  • How fast is an electron travelling If it has a wavelength of 8.20 km?
    12·1 answer
  • Most of the heat that’s melting the ice comes from the foil. That’s because metals are good conductors of heat. Heat from the su
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!