Chemistry

Molecular Shapes

100

What is the molecular shape if you are given CO₂?

Linear 

200

What is the molecular shape if you are given H₂O?

Bent

300

What is the molecular shape if you are given NH₃?

Trigonal Pyramidal

400

What is the molecular shape if you are given SCl₂?

Bent

500

What is the molecular shape for BCl₃?

Trigonal Planar 

Polyatomic

100

What is the formula for hydroxide?

OH^-

200

What is the name for HSO₄^-? 

hydrogen sulfate (bisulfate)

300

What is the name for CN^-?

Cyanide 

400

What is the name for BrO₃^-?

Bromate 

500

What is the formula for dihydrogen phosphate

H₂PO₄^-

Balance Equation

100

HBr--> H₂ + Br₂

2HBr --> H₂ +Br₂

200

KOH + H₃PO₄ --> K₃PO₄ + H₂O

3KOH + H₃PO₄ --> K₃PO₄ + 3H₂O

300

CaCl₂ + Na₃PO₄ --> Ca₃(PO₄)₂ + NaCl

3CaCl₂ + 2Na₃PO₄ --> Ca₃(PO₄)₂ + 6NaCl

400

FeS + O₂ --> Fe₂O₃ + SO₂

4FeS + 7O₂ --> 2Fe₂O₃ + 4SO₂

500

HClO₄ + P₄O₁₀ --> H₃PO₄ + Cl₂O₇

12HClO₄ + P₄O₁₀ --> 4H₃PO₄ + 6Cl₂O₇

Combine Gas Law

100

Which variable do they not want to change in the combine gas law?

Moles

200

Solve: If I initially have 4.0L of a gas at a pressure of 1.1atm, what will the volume be of I increase the pressure to 3.4atm?

V= 1.3L

300

Solve: A sample of helium gas has a volume of 0.180L, a pressure of 0.800 atm, and a temperature of 29°C. At what pressure (atm) will the helium have a volume of 90.0mL and a temperature of 52°C? 

T= °C + 273.15

P= 1.72 atm

400

Solve: People who are angry sometimes say that they feel as if they'll explode. If a calm person with a lung capacity of 3.5L and a body temperature of 36°C gets angry, what will the volume of the person's lungs be if their body temperature is raised to 39°C? (will not need pressure)

V= 3.5 L

500

Solve: If I have 17L of gas at a temperature of 67 degrees Celsius and a pressure of 88.89atm, what will be the pressure of the gas if I raise the temperature to 94 degrees Celsius and decrease volume to 12L? 

P₂ = 140atm

Ideal Gas Law

100

What four properties are in the ideal gas law equation?

pressure, temperature, volume, amount of gas/moles

200

Solve: A balloon is filled 4.4 moles of He (g) at a pressure of 2.0 atm. If the temperature of the He is 299K, what is the volume of the gas?

V= 54. L

300

Solve: A container is filled with 28 L of argon gas at a temperature of 353K. If the gas is held at 4.9 atm of pressure, how many moles of the gas are in the container?

n= 4.7 mol

400

Solve: A scientist obtains a flask of O₂ (g) with a temperature of 314K and a volume of exactly 100 L. If the flask contains 88 moles of gas, what is the pressure?

P= 23. atm

500

Solve: A bicycle tire contains 0.35 moles of gas at a temperature of 281K and a pressure of 1.75 atm. What is the volume of gas in the tire?

V= 4.6 L