Q3 Final Review

Theoretical yield = 73g
Actual yield = 62g
Calculate the percent yield.

• 1.16%
• 116%
• 85%
• 76%

P₄ + 3O₂ --> P₄O₆ 
What is the limiting reactant is 12 moles of P₄ react with 15 moles of O₂?

• P₄
• O₂
• P₄O₆ 
• none of the above

Tags

NGSS.HS-PS1-7

CH₄ + 2O₂ --> 2H₂O + CO₂

What is the volume of CO₂ produced when 16g of O₂ reacts?

• 1.09 L

• 5.6 L

• 11.2 L

• 45.7 L

Tags

NGSS.MS-PS1-5

In order to convert to Kelvin, you add ______ to the Celsius measurement.

• 372
• 273
• 237
• 732

If a balloon is cooled what will happen to the volume?

• Volume will increase
• Volume will decrease
• Volume will not change

Tags

NGSS.MS-PS1-4

Directly proportional means that as one value increases ....................

• the other stays the same 
• the other increases as well
• the other decereases
• the other goes to zero

Tags

NGSS.HS-PS2-1

What is the correct formula for Boyle's Law?

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

A sample of a gas has a volume of 852 mL at 298 K. What temperature is necessary for the gas to have a volume of 945 mL?

• Pt = P1 + P2 + P3 + ...
• P1V1 = P2V2
• V1/T1 = V2/T2
• P1V1/T1 = P2V2/T2

A container is filled with H₂, and H₂O. What is the partial pressure of H₂ when the pressure of water is 17 kPa. The total pressure of the gases is 750 kPa.

• P1V1 = P2V2
• Pt = P1 + P2 + P3 +...
• P1/T1 = P2/T2
• V1/n1 = V2/ n2

If a chemist calculates the maximum amount of product that could be obtained in a chemical reaction, he or she is calculating the

• theoretical yield
• mole ratio
• actual yield
• percentage yield

Tags

NGSS.HS-PS1-7