Search & Filtering
For the equilibrium
Br2(g) + Cl2(g) ⇋ 2BrCl(g),
the equilibrium constant Kp is 7.0 at 400 K. If a cylinder is charged with BrCl(g) at an initial pressure
of 1.00 atm and the system is allowed to come to equilibrium, what is the equilibrium partial
pressure of BrCl?
How many grams of water will use to dissolve 250 grams of salt to oroduce 10%brine?
1. The molecules of gases are governed by four variables such as pressure, temperature, volume and
molar amount which have specific relationships known as the gas laws.
(a) Chlorine is widely used to treat swimming pool water. The volume of a sample Chlorine gas (CI2) is
6.80 L at 1200 torr and 41 °C.
i. Calculate how many grams of CI2 are in the sample.
ii. What is the volume of gas of CI2 at Standard Temperature Pressure (STP) ?
iii. Calculate at what temperature will the volume be 15.00 L if the pressure is 900 torr.
iv. Calculate at what pressure will the volume be 7.5 L if the temperature is 88 •C.
Matter exist in different physical forms. The followings questions analyses general characteristics of
matter.
(a) The following table lists the boiling points of compounds of hydrogen. By referring to the type of
intermolecular forces, explain the differences in boiling points between
i. A and B
ii. B and C
iii. C and D
compound formula boiling point/ °C
A methane CH4 -164
B ammonia NH3 -33
C water H2O 100
D silane SiH4 -112
- explain how the electronegativity of gallium differs from germanium
- explain how the ionisation energy of gallium differs from germanium
- explain how the ionisation energy of gallium differs from indium
- explain how the atomic radius of gallium differs from aluminium
- explain how the electronegativity of gallium differs from aluminium
Draw the configurational stereoisomers for this structure
A closed container in lab contains a sample of oxygen gas. When the temperature in lab is 14.3 degrees Celcius, the pressure in the container is 10.3 atm. What would the temperature in lab be (in Celcius) if the pressure in the container was 24.0 atm? Assume the mol and volume of the container are constant. Record your answer as a number with the correct significant figures.
Explain the geometrical and optical isomerism of coordination compounds with coordination number 4, giving a suitable example (Minimum 4 examples).
Assuming a total pressure of 9.5 atm, what is the partial pressure of each component in the mixture of 98% helium and 2.0% oxygen breathed by deep sea divers? How does the partial pressure of oxygen in diving gas compare with its partial pressure in normal air?
