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Calculate the number of hydroxide ions in 10.0 g of zinc hydroxide.
The optical rotations of sucrose in 0.5M HCl measured in seconds 0,20 and undefined are +32.4,+25.5 and -11.1 respectively. Determine the order of the reaction
Determine mole fraction of solvent that produces a solution vapour
pressure of 23. 476 torr The vapour pressure of water at this temperature is
42 .362 torr
Molybdenum forms body-centered cubic crystals and at 20 oC the density is 10.3 g/mL. Calculate the distance between the centers of the nearest molybdenum atoms.
HOW many cubic centimeters of concentrated nitric acid are needed to obatain a mass of 76g
The vapor pressure of pure water at 110°C is 1070 torr. A solution of ethylene glycol and water has a vapor pressure of 1.00 atm at 110°C. Assuming that Raoult's law is obeyed, what is the mole fraction of ethylene glycol in the solution?
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