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While mercury is very useful in barometers, mercury vapor is toxic. Given that mercury has a DHvap of 56.9 kJ/mol and its normal boiling point is 356.7°C, calculate the vapor pressure in mm Hg at 25°C. the answer is 4.29 x 10-3 mm Hg
Predict the order of elution for benzoic acid and methyl orange in normal phase column chromatography using polar SiO2 as the stationary phase. In other words, which compound should come off the column first? The structures of benzoic acid and met..
A 2.48 L sample of He at 739 torr is mixed with 6.08 L of Ar at 325 torr both at 25 degrees C is placed in a 4.80 L container at 25 degrees C. What is the partial pressure in atm of He
Permanent antifreeze contains ethylene glycol dissolved in water. What is the mass of ethylene glycol dissolved in 5.00 kg of a 40.0% solution
Methyl benzoate - Acid and Base Organic Chemistry, In preparation of methyl benzoate, what is the purpose of 1. washing the organic layer with sodium bicarbonate solution?
If 0.600 gram of zinc is used, what is the amount of zinc chloride that is produced in the above reaction?
A household refrigerator operates between 35 and -10C. How many joules of heat can in principle be removed per kilowatt-hour of work?
An aluminum atom has a diameter of 143 pm. How many aluminum atoms can be placed on a line 1.00 mm long
Write the neutralization reaction, balance it, name the products THEN Solve the problem above.
Explain why p-nitrophenol is a stronger acid than phenol itself. P-methoxyphenol and acidity
If the volumes in the buret and the flask are identical and the concentration of the acid in the buret is 0.250 M, what is the concentration of the base in the flask.
suppose that a sample of pure water is saturated with gaseious co2 to form a solution of carbonic acid. which response
The balloon is designed to continue its ascent to an altitude of 30 km, where it bursts, releasing a package of meteorological instruments that parachute back to Earth.
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