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A sealed flask contains 0.45g of water at 28 °C. The vapor pressure of water at this temperature is 28.36 mmHg. Explain what is the minimum volume of the flask in order that no liquid water is present in the flask?
An unknown metal chloride has the formula MClx. The addition of 28.9 mL of 0.432 M aqueous lead (II) nitrate to 26.7 mL of 0.311 M aqueous MClx causes all the lead ions and chloride ions present in solution to precipitate out as lead (II) chloride
A sample of methane gas (CH4) having volume of 1.80L at 25oC and 1.65atm was mixed with a sample of oxygen gas having a volume of 35.0L at 31oC and 1.25atm. The mixture was ignited to form carbon dioxide and water.
the enthalpy fusion of methanol is 3.16 kJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams of methanol?
Consider the following reaction: 2H2O (g) + 2SO2 (g) 2H2S (g) + 3O2 (g) a reaction mixture initially contains 2.8 M H2O and 2.6 M SO2. Determine the equilbirum concentration of H2S if Kc for the reaction at this temperature is 1.3 x 10^-6
autoclaves must be pressurized to raise the temperature in order to sterilize medical equipment. At what pressure would the autoclave need to be to sterilize the equipment
What is the approximate thermal energy in kJ/mol of molecules at 0° C? Express your answer to the nearest 0.1 kJ/mol
The specific heat of silver is 0.235 J/g·K. Its melting point is 962°C, and its heat of fusion is 11.3 kJ/mol. What quantity of heat, in joules, is required to change 7.50 g of silver from solid at 25°C to liquid at 962°C?
Carbon dioxide is removed from the atmosphere of space capsules by reaction with a solid metal hydroxide. Theproducts are water and the metal carbonate
write a balanced equation for the reaction that occurs between the solutes. Calculate the concentration of each remaining ion in solution. Is the resultant solution acidic or basic
The hydrolysis of sucrose to fructose is first order in sucrose with a half-life of 2.3e+03 s at some temperature. 1.What fraction of sucrose, expressed as a percent, would hydrolyze in 2.8 hours
A dry cleaning fluid composed of carbon and chlorine was found to have a composition 14.5% carbon and 85.5% chlorine. Its known molar mass is 166 g/mol. Draw the Lewis structure to represent the compound.
A 37.7mL volume of an unknown gas is collected over water at19 degrees C and a total pressure of 770torr. The mass of the gas is 68.6 mg. Define what is the pressure of the gas
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