CHM103




Category: CHM103

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CHM103

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A.
The mathematical equation for Boyle's law can be written as ___________

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B.
The process of separating a pure substance from a solution is called _______


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C. Which of the following statements is false?

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D.
The temperature, above which a substances can exist only in gaseous state is called _________


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E. Distillation can be used to separate ________

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F.
The individual pressure of a gas in a mixture of gases is called ______

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G. A mixture of iron filings and copper filings could best be separated by _________

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H. According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid because _________

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I. Which measurement describes the pressure of a gas?

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J.
Temperature, length, time and mass are examples of ________


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K.
Numerical value of the universal gas constant is ____ J/K/mol


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L. Which of these alkanes is expected to have the highest viscosity?

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M.
 At constant temperature, the gas law that is most suitable is called _____ law

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N.
At constant pressure, properties of gases that undergo changes are _______


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O. Which one of the following statements most accurately relates the properties of a liquid at room temperature with its intermolecular forces?

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P.
________ is an instrument that can be used to measure the strength of an acid or a base

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Q.
Modern approach to chemistry deals with equilibrium properties, ability to change and ______

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R. 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?

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S.
The Beckman thermometer IS used in the Beckman's apparatus for determining __________ of a substance

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T.
International system of unit or system international can be written as an acronym _______________


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U. In fractional distillation, a mixture of liquids is separated based on their _______

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V. The concentration of KBr in a solution prepared by dissolving 2.21 g of KBr in 897 g of water is __________ molal.

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W. An ideal gas differs from a real gas in that the molecules of an ideal gas __________.

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X. Ethanol dissolved in water would be an example of ___________

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Y. 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.

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Z.
Gas molecules confined to a container are in a state of ____________ motion

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AA. Which of the followings is not a characteristic of an ideal solution?

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AB. What is the average speed (actually the root-mean square speed) of a neon atom at 27 C?

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AC.
A skillful process of identifying. substituting and using correct apparatus appropriately in the laboratory is called _____


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AD.
 The gas law that explain the effusion of gas is ____________


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AE.
_________ of a gas is proportional to the mean kinetic energy of the molecules in a gas


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AF.
The volume occupied by 1 mole of oxygen gas at s.t.p. is ________ dm3


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AG.
Apparatus that arc basically used for determining the melting points of substances are called ____________


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AH. Which of the following is not a colligative property?

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AI.
A gas that obeys all the gas laws is called an ______


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AJ.
At relatively low pressure, there are no ___________ forces between gas molecules

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AK.
The equation of ideal gas can be expressed as ______


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AL.
Meter, kelvin, second and kilogram are  examples of _______


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AM.
An expression for the combined gas law can be expressed as ________


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AN.
-______is a state of matter that does not have a definite shape nor volume


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AO.
 A homogenous materials that contain only one substance is called a ___________


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AP.
 A plot showing the variation of volume with temperature at constant pressure is called __________


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AQ.
Constituents in a solution can be separated by applying the principle of ___________


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AR.

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.

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AS.
The mathematical equation for Charles law can be written as ________

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AT. A liquid will "wet" a surface if: ______

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AU. 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.

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AV.
At high temperature and low pressure, gases tend to undergo phenomena that is called  ___________


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AW.
In a gas. the molecules on the average are separated by large ______ distances


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AX.
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 __________


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AY. An atom on the face-centre of a unit cell is shared by _________ unit cells.

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AZ. Which of the followings will not diffract X-rays?

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BA.
Physical Chemistry is concern with two major aspects, namely ability to change and ­_____


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BB.
At low temperature and high pressure, gases  tend to __________


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BC.
The rate at which gases diffuse is inversely proportional to the Square root of their ____________


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BD.
For 1 mole of an ideal gas, a plot of PV against T will give a straight line whose slope is equal to __________

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