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Bellwork 1 Week 4 4th Nine Weeks

Authored by E Wheeler

Chemistry

10th Grade

Used 1+ times

Bellwork 1 Week 4 4th Nine Weeks
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the pressure exerted by a gas at 298 K in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?

P1/T1 = P2/T2
PV = nRT
V1/n1 = V2/n2
P1V1 = P2V2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A gas fills a balloon at a temperature of 27 oC and 1 atm of pressure. What will the pressure of the balloon be if the gas is heated to 127 oC?

P1V1 = P2V2
PV = nRT
P1/T1 = P2/T2
V1/T1 = V2/T2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A 220.0 mL sample of helium gas is in a cylinder at 105 kPa and 275 K. The piston is pushed in until the sample has a new temperature of 310 K and new pressure of 150 kPa. What is the new volume of the gas? 

P1V1/T1 = P2V2/T2
PV = nRT
P1V1 = P2V2
Pt = P1 + P2 + P3 + ...

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A container has 0.504 moles of a gas at a volume of 2680 mL.  When the number of moles changes to 0.423 moles, what is the new volume?

PV = nRT
V1/n1 = V2/n2
P1V1/T1 = P2V2/T2
P1V1 = P2V2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the total pressure is 0.99 atm, and the partial pressure of carbon dioxide and hydrogen sulfide is 0.05 atm and 0.02 atm respectively.  What will be the partial pressure of the remaining air?

P1V1 = P2V2
Pt = P1 + P2 + P3 + ...
PV = nRT
P1/T1 = P2/T2

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 

0 K 
107 K 
207 K 
307 K 

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is 50 °C in Kelvin?

223
323
100
50

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