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Kazeer [188]
3 years ago
10

What pressure is exerted by 2.500 kg of oxygen gas (O2) stored at 22°C in a 40.0-L cylinder? (R = 0.08206 L • atm/K • mol)

Chemistry
1 answer:
Serjik [45]3 years ago
8 0

Answer:

47.27 atm

Explanation:

For this problem, you will use PV=nRT as your equation

P =  being found

V= 40 L

n = 78.13 moles

R = 0.082

T= 295.15 K

The set up is:

p (40.0)= (0.082)(78.13)(295.15)

40p=1890.9

p = 47.27 atm

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3 0
3 years ago
4. The volume of a sample of a gas at STP is 200.0 ml. If the pressure is increased to 4.00 atmospheres (temperature constant),
Elina [12.6K]

Answer : The value of new volume is, 50.0 mL

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}

or,

P_1V_1=P_2V_2

where,

P_1 = initial pressure at STP = 1 atm

P_2 = final pressure =  4.00  atm

V_1 = initial volume at STP = 200.0 mL

V_2 = final volume = ?

Now put all the given values in the above equation, we get:

1atm\times 200.0mL=4.00atm\times V_2

V_2=50.0mL

Therefore, the value of new volume is, 50.0 mL

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3 years ago
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Debora [2.8K]

Answer:

Barium Ba2+

Explanation:

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