ATTENTION:
Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.
Good luck!
CHM103
1 / 50
A solution is prepared by dissolving calcium chloride in water and diluting to 500.0 mL. If this solution contains 44 ppm chloride ions, the concentration of calcium ions is __________ ppm.
2 / 50
The temperature, above which a substances can exist only in gaseous state is called _________
3 / 50
3. An ideal gas differs from a real gas in that the molecules of an ideal gas __________.
4 / 50
The rate at which gases diffuse is inversely proportional to the Square root of their ____________
5 / 50
5. The Henry's law constant for helium gas in water at 30 °C is 0.00037 M/atm. When the partial pressure of helium above a sample of water is 0.650 atm, the concentration of helium in the water is __________ M.
6 / 50
The Beckman thermometer IS used in the Beckman's apparatus for determining __________ of a substance
7 / 50
Constituents in a solution can be separated by applying the principle of ___________
8 / 50
8. According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid because _________
9 / 50
At constant pressure, properties of gases that undergo changes are _______
10 / 50
A plot showing the variation of volume with temperature at constant pressure is called __________
11 / 50
A gas that obeys all the gas laws is called an ______
12 / 50
Modern approach to chemistry deals with equilibrium properties, ability to change and ______
13 / 50
Meter, kelvin, second and kilogram are examples of _______
14 / 50
________ is an instrument that can be used to measure the strength of an acid or a base
15 / 50
At constant temperature, the gas law that is most suitable is called _____ law
16 / 50
_________ of a gas is proportional to the mean kinetic energy of the molecules in a gas
17 / 50
17. Which of these alkanes is expected to have the highest viscosity?
18 / 50
For 1 mole of an ideal gas, a plot of PV against T will give a straight line whose slope is equal to __________
19 / 50
19. Ethanol dissolved in water would be an example of ___________
20 / 50
The gas law that consider the total pressure of a gas as a function of the pressures exerted by the individual gases that make up the mixture is __________
21 / 50
21. A liquid will "wet" a surface if: ______
22 / 50
An expression for the combined gas law can be expressed as ________
23 / 50
23. What is the average speed (actually the root-mean square speed) of a neon atom at 27 C?
24 / 50
The volume occupied by 1 mole of oxygen gas at s.t.p. is ________ dm3
25 / 50
Apparatus that arc basically used for determining the melting points of substances are called ____________
26 / 50
26. Which measurement describes the pressure of a gas?
27 / 50
Physical Chemistry is concern with two major aspects, namely ability to change and _____
28 / 50
At high temperature and low pressure, gases tend to undergo phenomena that is called ___________
29 / 50
29. An atom on the face-centre of a unit cell is shared by _________ unit cells.
30 / 50
30. Which of the followings will not diffract X-rays?
31 / 50
The mathematical equation for Boyle's law can be written as ___________
32 / 50
The equation of ideal gas can be expressed as ______
33 / 50
33. A mixture of iron filings and copper filings could best be separated by _________
34 / 50
-______is a state of matter that does not have a definite shape nor volume
35 / 50
35. Which of the following is not a colligative property?
36 / 50
36. A sample of oxygen occupies 47.2 liters under a pressure of 1240 torr at 25 $^{o}C$. What volume would it occupy at 25$^{o}C$ if the pressure were decreased to 730 torr?
37 / 50
Gas molecules confined to a container are in a state of ____________ motion
38 / 50
38. Distillation can be used to separate ________
39 / 50
39. Which of the following statements is false?
40 / 50
40. The concentration of KBr in a solution prepared by dissolving 2.21 g of KBr in 897 g of water is __________ molal.
41 / 50
A skillful process of identifying. substituting and using correct apparatus appropriately in the laboratory is called _____
42 / 50
The mathematical equation for Charles law can be written as ________
43 / 50
The gas law that explain the effusion of gas is ____________
44 / 50
44. In fractional distillation, a mixture of liquids is separated based on their _______
45 / 50
The process of separating a pure substance from a solution is called _______
46 / 50
A homogenous materials that contain only one substance is called a ___________
47 / 50
At relatively low pressure, there are no ___________ forces between gas molecules
48 / 50
Numerical value of the universal gas constant is ____ J/K/mol
49 / 50
In a gas. the molecules on the average are separated by large ______ distances
50 / 50
50. The vapor pressure of pure ethanol at 60 °C is 0.459 atm. Raoult's Law predicts that a solution prepared by dissolving 10.0 mmol naphthalene (nonvolatile) in 90.0 mmol ethanol will have a vapour pressure of __________ atm.
Restart quiz
Rate this quiz
