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
Nookie1986 [14]
3 years ago
14

If I have an unknown quantity of gas at a pressure of 50.65 kPa, a volume of 25 liters, and a temperature of 300 K, how many mol

es of gas do I have?
If I have 21 moles of gas held at a pressure of 7901kPa and a temperature of 900 K, what is the volume of the gas?



If I have 1.9 moles of gas held at a pressure of 5 atm and in a container with a volume of 50 liters, what is the temperature of the gas?



If I have 2.4 moles of gas held at a temperature of 97 0C and in a container with a volume of 45 liters, what is the pressure of the gas?



If I have an unknown quantity of gas held at a temperature of 1195 K in a container with a volume of 25 liters and a pressure of 560 atm, how many moles of gas do I have?



If I have 0.275 moles of gas at a temperature of 75 K and a pressure of 177.3 kPa, what is the volume of the gas?



If I have 72 liters of gas held at a pressure of 344.4kPa and a temperature of 225 K, how many moles of gas do I have?
Chemistry
1 answer:
just olya [345]3 years ago
7 0

Answer:

Q1: 0.51 mol.

Q2: 19.87 L.

Q3: 1604.62 K.

Q4: 1.62 atm.

Q5: 142.87 mol.

Q6: 0.966 L.

Q7: 13.26 mol.

Explanation:

  • To solve these problems, we can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant (R = 0.082 L.atm/mol.K),

T is the temperature of the gas in K.

<u><em>Q1) If I have an unknown quantity of gas at a pressure of 50.65 kPa, a volume of 25 liters, and a temperature of 300 K, how many moles of gas do I have? </em></u>

  • <em>The no. of moles of the gas (n) = PV/RT. </em>

P = 50.65 kPa/101.325 = 0.5 atm, V = 25.0 L, R = 0.082 L.atm/mol.K, and T = 300 K.

∴ n = PV/RT = (0.5 atm)(25.0 L)/(0.082 L.atm/mol.K)(300 K) = 0.51 mol.

<u><em>Q2) If I have 21 moles of gas held at a pressure of 7901 kPa and a temperature of 900 K, what is the volume of the gas? </em></u>

  • The volume of the gas = nRT/P.

n = 21.0 mol, R = 0.082 L.atm/mol.K, T = 900 K, and P = 7901 kPa/101.325 = 77.976 atm.

∴ V = nRT/P = (21.0 mol)(0.082 L.atm/mol.K)(900 K)/(77.976 atm) = 19.87 L.

<u><em>Q3) If I have 1.9 moles of gas held at a pressure of 5 atm and in a container with a volume of 50 liters, what is the temperature of the gas? </em></u>

  • The temperature of the gas = PV/nR.

P = 5.0 atm, V = 50.0 L, n = 1.9 mol, R = 0.082 L.atm/mol.K.

∴ T = PV/nR = (5.0 atm)(50.0 L)/(1.9 mol)(0.082 L.atm/mol.K) = 1604.62 K.

<u><em>Q4) If I have 2.4 moles of gas held at a temperature of 97 0C and in a container with a volume of 45 liters, what is the pressure of the gas? </em></u>

  • The pressure of the gas = nRT/V.

n = 2.4 mol, R = 0.082 L.atm/mol.K, T = 97.0 C + 273 = 370.0 K, V = 45.0 L.

∴ P = nRT/V = (2.4 mol)(0.082 L.atm/mol.K)(370.0 K)/(45.0 L) = 1.62 atm.

<u><em>Q5) If I have an unknown quantity of gas held at a temperature of 1195 K in a container with a volume of 25 liters and a pressure of 560 atm, how many moles of gas do I have? </em></u>

  • The no. of moles of the gas (n) = PV/RT.

P = 560.0 atm, V = 25.0 L, R = 0.082 L.atm/mol.K, and T = 1195 K.

∴ n = PV/RT = (560.0 atm)(25.0 L)/(0.082 L.atm/mol.K)(1195 K) = 142.87 mol.

<em><u>Q6) If I have 0.275 moles of gas at a temperature of 75 K and a pressure of 177.3 kPa, what is the volume of the gas? </u></em>

  • The volume of the gas = nRT/P.

n = 0.275 mol, R = 0.082 L.atm/mol.K, T = 75 K, and P = 177.3 kPa/101.325 = 1.75 atm.

∴ V = nRT/P = (0.275 mol)(0.082 L.atm/mol.K)(75.0 K)/(1.75 atm) = 0.966 L.

<em><u>Q7) If I have 72 liters of gas held at a pressure of 344.4kPa and a temperature of 225 K, how many moles of gas do I have? </u></em>

  • The no. of moles of the gas (n) = PV/RT.

P = 344.4 kPa/101.325 = 3.4 atm, V = 72.0 L, R = 0.082 L.atm/mol.K, and T = 225 K.

∴ n = PV/RT = (3.4 atm)(72.0 L)/(0.082 L.atm/mol.K)(225 K) = 13.26 mol.

You might be interested in
Сульфат железа (II) окисляется в кислой среде перманганатом калия до Fe2(SO4)3, т.е. окисляется. Запишите и приравняйте уравнени
SOVA2 [1]

Answer:

Sorry for disrespecting you but i don't know your language. I want to help but my problem is your language IM SO SORRY

5 0
2 years ago
What is 108 g +10+5+3
natali 33 [55]

ANSWER : 108 + 10 = 118

118 + ( 5 + 3 )

118 + 8 = <u>1</u><u>2</u><u>6</u>

<u>=</u><u> </u><u>1</u><u>2</u><u>6</u><u> </u><u>g</u>

7 0
3 years ago
What mass (g) of barium iodide is contained in 188 ml of a barium iodide solution that has an iodide ion concentration of 0.532m
Katarina [22]

Answer:

What mass (g) of barium iodide is contained in 188 mL of a barium iodide solution that has an iodide ion concentration of 0.532 M?

A) 19.6

B) 39.1

C) 19,600

D) 39,100

E) 276

The correct answer to the question is

B) 39.1  grams

Explanation:

To solve the question

The molarity ratio is given by

188 ml of 0.532 M solution of iodide.

Therefore we have number of moles = 0.188 × 0.532 M = 0.100016 Moles

To find the mass, we note that the Number of moles = \frac{Mass}{Molar Mass} from which we have

Mass = Number of moles × molar mass

Where the molar mass of Barium Iodide = 391.136 g/mol

= 0.100016 moles ×391.136 g/mol = 39.12 g

8 0
2 years ago
What is the compound with sodium and bromine called?
kykrilka [37]

Answer:

Sodium Bromide

4 0
3 years ago
Read 2 more answers
Which of these planets has the coldest surface temperature?
lianna [129]

Neptune planet has the coldest surface temperature

<u>Explanation:</u>

With temperatures falling to -218°C in Neptune’s upper atmosphere, the planet is one of the coolest in our Solar System.  Neptune is the most faraway planet from the sun. Astronomers have speculated that Neptune's huge internal temperature and the transfer of heat between the core and outer layers might be the cause why Neptune isn't significantly more chill than Uranus.

Pressures in this area range between 1 and 5 bars and the temperature reaches a high of 72 K. At this temperature, states are becoming for methane to condense, and clouds of ammonia and hydrogen sulfide are thought to form. At its core, Neptune reaches temperatures of up to 7273 K which is equivalent to the surface of the sun.

3 0
3 years ago
Read 2 more answers
Other questions:
  • 9)
    7·1 answer
  • Which of these instruments can be used to predict a thunderstorm?
    10·2 answers
  • Which is a series circuit and a parallel circuit
    6·2 answers
  • Help please fast as possible I’ll mark you brainlist
    6·1 answer
  • The growth of the plants that the animal used for food could not keep up with the needs of the population. There was so little f
    11·2 answers
  • A sample of water is cooled from 45°C to 35°C by the removal of 84 Joules of heat. What is
    11·1 answer
  • How many atoms of hydrogen combine with one carbon atom to form methane
    14·1 answer
  • Predict the missing particle or nuclide.
    10·1 answer
  • If there are 94 different kinds of naturally occurring atoms how many different naturally occurring elements are there?
    14·1 answer
  • A change in _____ means that a chemical reaction has occurred. Responses A the energy and massthe energy and mass B the kinds of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!