Question

1. True or false, SO2 is a bent molecule because it experiences no dipole-dipole interactions.

2. Which central atom has eight valence electrons around it when it forms the covalent compound?

a. Calcium chloride

b. Sulfur hexachloride

c. Boron trichloride

d. Carbon tetrachloride

3. Which of the following is true about gasses?

a. They have a definite shape

b. Their particles are in close contact with each other

c. They have strong intermolecular interactions

d. They have no definite volume

e. They take the shape of the bottom of the container

4. True or false, liquid and gas molecules can be compressed whiln a solid, the molecules are incompressible

5. Determine how many millimeters of mercury are in 9.65 bar

a. 7.24 X 10³ mmHg

b. 7.33 X 10³ mmHg

c. 9,640 mmHg

d. 7.43 X 10³ mmHg

3. 9.64 mmHg

6. Avogadro's Law is expressed as:

a. n = 1/T(k)

b. P = n(k)

c. V = 1/n(k)

d. V=n(k)

e. None of these

7. 1Pa =

a. 1 torr

b. 1atm

c. 1 kJ/m

d. 1N/m²

e. 1J/s
8. True or false, in charles's law, gas volume is directly related to the Celsius temperature

9. True or false, one mole of F₂ gas at STP would take up twice the volume of one mole of Ar gas at STP

10. True or false, if the amount of fas in a sample and its temperature are kept constant, then as the pressure of a fas is increased, the volume of the gas decreases proportionately. This is one form of Boyle's law.

Answer 1

1. True

2. d. Carbon tetrachloride

in CCl4 central atom carbon form four bonds. so central atom carbon contains 8 eight electrons.

3. d. They have no definite volume

gases does not have fixed volume

4.True

5. 1bar = 750mmHg

9.65bar = 9.65*750mmHg   = 7237.5mmHg    = 7.24 X 10³ mmHg

a. 7.24 X 10³ mmHg

6.d. V=n(k)

volume is directely proportional to no of molecules or no of moles at constant temprature and pressure.

7.d. 1N/m²

8.false

Volume is directely proportinal to absulute temperature.

9.flase

1 mole of any gas at STP conditions occupied volume is 22.4L

10.True

V1/P

4.