What mass of water is contained in the vapor above solution
An aqueous solution contains 10.6% NaCl by mass. What mass of water (in grams)is contained in 2.8L of the vapor above this solution at 55 celcius? the vaor pressure of pure water at 55 celcius is 118 torr.
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Only 1.40 mg of pure penicillin having an activity of 280 cpm was recovered. What was the penicillin content of the original 5.00 kg of crude penicillin?
How many elastic scatters, on the average, are required to slow a 1-MeV neutron to below 1 eV in (a) 16O and in (b) 56Fe?
A stone of mass 0.31 kg is tied to a string of length 0.50 m and is swung in a horizontal circle with speed v. The string has a breaking-point force of 45 N. What is the largest value v can have without the string breaking?
A vertical cylindrical cylinder, closed at the bottom end, contains 0.0100 moles of gas. It is fitted at the top with a piston, which can move freely. The mass of the piston is 14.0 kg and the initial height of the piston above the bottom of the c
What mass of water (in grams)is contained in 2.8L of the vapor above this solution at 55 celcius? the vapor pressure of pure water at 55 celcius is 118 torr.
A solution of 350mg of optically active 2-butanol in 10 mL of water, placed in a 20 cm cell shows an optical rotation of +6 .24o. What is the specific rotation of this compound?
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How much work is done (a) by the block on the spring and (b) by the spring on the block? (c) What is the value of h0? (d) If the block were released from height 3h0 above the spring, what would be the maximum compression of the spring?
Calculate the value (calories) for the heat of solution of 4.00 g of NaOH. Calculate the number of calories that would be produced if one mole of sodium hydroxide was dissolved.
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