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A 9.15-L container holds a mixture of two gases at 37 °C. The partial pressures of gas A and gas B, respectively, are 0.443 atm and 0.707 atm. If 0.150 mol a third gas is added with no change in volume or temperature, what will the total pressure become?
A liquid substance has a vapor pressure of 450.0 mmHg at 262.0 degrees celsius and 760.0 mmHg at 325.0 celsius. a) what is the heat of vaporization of this substance? b) what is its normal boiling point?
Intermolecular interactions can be classed as either: strong, moderate, or weak. Give two examples for each class and give approximate values for the magnitude
What is the [H3O+] of a buffer that consists of 0.154 M CH3CH2COONa and 0.645 M CH3CH2COOH. Ka of propanoic acid, CH3CH2COOH is 1.3 x 10-5.
Calculate the mass of ethylene glycol (C2H6O2) that must be added to 1.00 kg of ethanol (C2H5OH) to reduce its vapor pressure by 11.9 torr at 35°C. The vapor pressure of pure ethanol at 35°C is 1.00 multiplied by 102 torr
An open tubular chromatography column is 31.8 m long and has an inner diameter of 0.528 mm. The inside wall is coated with a layer of stationary phase 3.2 ?m thick. Unretained solute passes through the column in 2.23 min, while a certain solute ha..
The specific heat of water is 4.18 . Calculate the molar heat capacity of water. What mass of natural gas must you burn to emit 258 of heat
The crystal structure of an element X can be described as follows: X atoms form a face-centred cubic lattice with an edge length of 356.7 pm. In addition, there are X atoms occupying every other tetrahedral site in the face-centred cubic lattice.
Name and list the functions of the prosthetic group(s) associated with a) HDLs , b) interferons, c) viruses , and d) hemoglobin
A solution of I2 was standardized with ascorbic acid. Using .1000 g sample of pure ascorbic acid, 23.25 ml of I2 were required to reach the starch end point.
On the coldest day of last year, what was the temperature at the bottom of Lake Michigan? explain your answer in terms of the density of water.
Calculate the concentration of ethanol in wine in terms of mass percent and molality. mass percent: (answer in percent) molality
Determine the activation barrier for the reaction.
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