Calculate the pure water has a vapor pressure
Calculate the vapor pressure of a solution which contains the 50.0% by mass sucrose (MW 342 g/mol) in water (MW 18.0 g/mol, which is having the density 1.00 g/mL) at a temperature where the pure water has a vapor pressure of 26.0 torr.
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Determine the numbers of grams of the zinc sulfide should precipitate the theoretically if 2 liters of a 4 M aqueous solution of zinc nitrate are reacted with an excess of an aqueous solution of sodium sulfide.
Determine the population ratio N(v=1)/N(v=0), where v=0 and 1 are the ground and excited vibration states for the HCl at room temperature of 298K? Assume a vibration transition wave number of 2991 cm-1 and Cl-35isotope.
An adult weighing 70kg contains about 170g of K. The beta decay of 40K that is a natural part of the body. The relative abundance of 40K is 0.0118% its half life is1.28x109 years, and its beta particles have an average kinetic energy o
A piece of wood has carbon-14 activity found in an archeological dig that is 74% of the current carbon-14 activity. How old is the piece of wood when the t1/2 carbon-14 = 5.73ka
Determine the cell voltage for this reaction assuming the (Fe+2, Fe +3, Cr +3 are 0.1M)? Determine the reduced and the oxidized? Write down the half reactions for each electrode.
When 2.5 g of a Zinc strip were placed in a AgNO3 solution, silver metal produced on the surface of the strip. After sometime had passed, the strip was removed from the dried, solution, and weighed.
A sample which is having the 2.00 mol of graphite reacts totally with a limited quantity of oxygen at 25 Degrees Celsius and 1.0 atm pressure, forming the 481 kJ of heat and a mixture of CO2 and CO. Determine the masses of CO and CO2 forme
Graphite is burned in the oxygen to give carbon dioxide and carbon monoxide. If the product mixture is 67% CO2 and 33% CO by mass, calculate the heat from the combustion of 1.00g of graphite?
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