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The temperature of 3.50 kg of water is raised by 1.17°C when 1.00 g of hydrazine N2H4 is burned in a bomb calorimeter. The bomb has a heat capacity of 883 J/°C. How much heat is given off by the sample?
A student heated a 4.901 g sample of hydrated iron chloride. After heating, the anhydrous iron chloride has a mass of 3.010 g. Calculate the percentage by mass of water in the hydrated compound.
calculate the solubility of zinc hydroxide znoh2 in 1.00 m naoh.nbsp ksp 3.0 times 10-16 for znoh2 kf 3.0 times 1015
Predict the mass of the most abundant fragment signal in the mass spectrum of 2,2-dimethylpentane. 85 amu 29
What is the wavelength (in meters) of a proton (mass = 1.673*10^-24 g) that has been accelerated to 30% of the speed of light.
Assume equal concentration rank these solution by PH : HBrO(aq), Sr(OH)2 (aq)
If HCl concentration is reduced by 50% and the rate is reduced by 25% what is the reaction order? This is assuming the other reactant is at a constant concentration.
you have a 550 ml tank of gas with a pressure of 1.56 atm at 24.0degc. you thought the gas was pure carbon monoxide but
1. we have a solution of unknown substance dissolved in water at the temperature of 300 kelvin this solution gives
The Wittig reaction involves coupling between a phosphonium ylide and a carbonyl-containing molecule. If a chemist wants to use the Wittig reaction to synthesize 3-methyl-3-hexene, which reactants should be used
Identify the geometry of the iron(III) complex in water and the complex ions produced in the above reactions
a 3.00 l flask is filled with gaseous ammonianh3. the gas pressure measured at 20.0 degrees c is 1.95 atm. assuming
A piece of metal of mass 27 g at 105?C is placed in a calorimeter containing 49.2 g of water at 19?C. The ?nal temperature of the mixture is 30?C. What is the speci?c heat capacity of the metal.
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