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A solution is 89.8% by volume benzene(C6H6) in carbon tetrachloride at 20 degrees C. The vapor pressure of pure benzene at this temperature is 74.61 mmHg and it's density is 0.87865 g/cm^3; the vapor pressure of pure carbon tetrachloride is 91.32 mmHg and it's density is 1.5940 g/cm^3. If this solution is ideal, it's total vapor pressure at 20 degrees C is:
A. 7.62E1 mmHg
B. 7.51E1 mmHg
C. 5.89E1 mmHg
D. 8.97E1 mmHg
E. 7.55E1 mmHg
How many grams of Cu(OH)2 will precipitate when excess KOH solution is added to 63.0 mL of 0.610 M CuSO4 solution.
Compute ΔU for the transformation; a = 0.136 m6Pa mol-2 ; b = 0.0391 L/mol.
Determine the order of the reaction and write a narrative of your approach to determine its order. What is the rate constant for the reaction?
What molar ratio of benzoate ion to benzoic acid would be required to prepare a buffer with a pH of 5.20? [Ka(C6H5COOH) = 6.5 * 10-5]
The half life of Iodine-131 is 8.0252 days. If 14.2 grams of I-131 is released in Japan and takes 31.8 days to travel across the Pacific
Give a detailed mechanism for the nitration of bromobenzene . As part of your answer explain the regiospecificity
A 5.0 L sealed bottle containing 0.26 g of liquid ethanol, C2H6O, is placed in a refrigerator and reaches equilibrium with its vapor at -11°C. The vapor pressure of ethanol is 10 torr at -2.3°C and 40 torr at 19°C.
How many phases and components are present. (b) What is the variance (the number of degrees of freedom) of the system? Identify the independent variables.
How much heat is required to vaporize 25.5 g of water at 100 C? The heat of vaporization of water at 100 C is 40.7 rm kJ/mole.
Describe spectroscopic or chemical tests to distinguish between the following pairs of compounds
A piece of metal with a mass of 146 g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 35 mL. What is the density of the metal?
The thermal decomposition of phosphate into phosphorous and molecular hydrogen is a first order reaction : 4PH3(g) -----> P(g) + 6H2(g), The half life of the reaction is 35.0 s at 680*c
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