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
Constituents in a solution can be separated by applying the principle of ___________
2 / 50
________ is an instrument that can be used to measure the strength of an acid or a base
3 / 50
At high temperature and low pressure, gases tend to undergo phenomena that is called ___________
4 / 50
The mathematical equation for Boyle's law can be written as ___________
5 / 50
Apparatus that arc basically used for determining the melting points of substances are called ____________
6 / 50
Modern approach to chemistry deals with equilibrium properties, ability to change and ______
7 / 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.
8 / 50
8. Ethanol dissolved in water would be an example of ___________
9 / 50
9. What is the average speed (actually the root-mean square speed) of a neon atom at 27 C?
10 / 50
The individual pressure of a gas in a mixture of gases is called ______
11 / 50
At low temperature and high pressure, gases tend to __________
12 / 50
12. Which of the followings is not a characteristic of an ideal solution?
13 / 50
A homogenous materials that contain only one substance is called a ___________
14 / 50
Meter, kelvin, second and kilogram are examples of _______
15 / 50
_________ of a gas is proportional to the mean kinetic energy of the molecules in a gas
16 / 50
An expression for the combined gas law can be expressed as ________
17 / 50
17. Which one of the following statements most accurately relates the properties of a liquid at room temperature with its intermolecular forces?
18 / 50
A skillful process of identifying. substituting and using correct apparatus appropriately in the laboratory is called _____
19 / 50
The volume occupied by 1 mole of oxygen gas at s.t.p. is ________ dm3
20 / 50
20. In fractional distillation, a mixture of liquids is separated based on their _______
21 / 50
21. A mixture of iron filings and copper filings could best be separated by _________
22 / 50
In a gas. the molecules on the average are separated by large ______ distances
23 / 50
Temperature, length, time and mass are examples of ________
24 / 50
24. Which of these alkanes is expected to have the highest viscosity?
25 / 50
The temperature, above which a substances can exist only in gaseous state is called _________
26 / 50
26. Which of the following statements is false?
27 / 50
International system of unit or system international can be written as an acronym _______________
28 / 50
28. A liquid will "wet" a surface if: ______
29 / 50
At constant pressure, properties of gases that undergo changes are _______
30 / 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 __________
31 / 50
The equation of ideal gas can be expressed as ______
32 / 50
32. 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.
33 / 50
The rate at which gases diffuse is inversely proportional to the Square root of their ____________
34 / 50
For 1 mole of an ideal gas, a plot of PV against T will give a straight line whose slope is equal to __________
35 / 50
35. 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?
36 / 50
36. Which of the following is not a colligative property?
37 / 50
37. An atom on the face-centre of a unit cell is shared by _________ unit cells.
38 / 50
A plot showing the variation of volume with temperature at constant pressure is called __________
39 / 50
39. 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.
40 / 50
The gas law that explain the effusion of gas is ____________
41 / 50
Numerical value of the universal gas constant is ____ J/K/mol
42 / 50
The process of separating a pure substance from a solution is called _______
43 / 50
At constant temperature, the gas law that is most suitable is called _____ law
44 / 50
44. Distillation can be used to separate ________
45 / 50
Physical Chemistry is concern with two major aspects, namely ability to change and _____
46 / 50
-______is a state of matter that does not have a definite shape nor volume
47 / 50
47. An ideal gas differs from a real gas in that the molecules of an ideal gas __________.
48 / 50
The mathematical equation for Charles law can be written as ________
49 / 50
49. Which measurement describes the pressure of a gas?
50 / 50
At relatively low pressure, there are no ___________ forces between gas molecules
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