WorksheetsQuiz for CHEM 242 - LAB
Total questions: 15
Worksheet time: 4hrs 45mins
The solubility of two partially miscible liquid of phenol-water system is depends on two factors :.............&............
Temperature & Pressure
Volume & Pressure
Temperature & Concentration of phenol in water
...............is defined as that particular ratio of components in a mixture that has the lowest freezing point.
Critical point
Eutectic point
Boiling point
In phenol-water system,If the %composition of phenol at critical temperature is 33%
The % composition of water at critical temperature is ...........
67%
0.33%
70%
To convert the molar concentration (mol/L) to unit (g/L) by multiplying in ..................
number of moles (n)
103
Molecular Weight (M.wt)
For Ternary system,we have three components. If the system consists of only one phase,The degree of freedom F=
2
4
5
The liquids are completely dissolve in each other to form homogeneous solution called ................
Immiscible liquids
miscible liquids
partially miscible liquids
TO be able to use the distribution coefficient law, the substance should be soluble in two immiscible liquid?
True
False
Plot a graph of %phenol against miscibility temperature.The graph is .................
Triangular
Straight line
bell-shaped
If distribution coefficient smaller than one (D<1),This mean that concentration of substance in aqueous layer ............... than concentration in organic layer.
smaller
greater
equal
In the first-order reaction,we determine the rate constant by plotting the relation between ln[A] and " t " and slope should be equal ..............
K
-K
1/K
Hydrolysis of ethyl acetate in acidic solution produces two product are .............&..........
CH3COOH + CH3CH2OH
CH3COOH + H2O
H2O + CH3CH2OH
What is the half life (t1/2)of N2O5 if it decomposes with a rate constant of 5.7X10-4 S-1 ?
8.22X10-4 Sec
1216.05 Sec
1121.05 Sec
Derive Integrated rate equation for first-order reaction ?
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Solve this question on paper
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Solve this question on paper
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