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At 25°C the vapour pressure of pure pentane is 511 torr and that of hexane is 150. torr.
What is the mole fraction of pentane in a pentane-hexane solution that has a vapour pressure of 302 torr at 25°C?
What is the mole fraction of hexane in the vapour that is in equilibrium with this solution?
(Assume ideal gas behaviour.)
When 29.0 mL of 0.605 M H2SO4 is added to 29.0 mL of 1.21 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate ?H of this reaction.
question a 2.70 mole quantity of nocl was initially in a 1.50 l reaction chamber at 400degc. after equilibrium was
4.00 mL of 2.0E-3 M iron(III) nitrate solution is mixed with 5.00 mL of 2.0E-3 M potassium thiocyanate solution, 6.00 mL of 0.500 M nitric acid solution
What is the equilibrium constant, Kc, for the reaction at this temperature?
Assuming that no heat is lost to the cup or the surroundings, what will the final temperature of the water be? The specific heat capacity of iron = 0.449 J/g°C and water = 4.18 J/g°C.
calculate the amount of energy required in calories to heat 145g of h2o from 22.3 degrees c to 75.0 degrees c.
Show that the van der Waals and Redlich-Kwong equations of state reduce to the ideal gas equation of state in the limit
Draw the structure of each product obtained when the given compound is treated with the reagent specified below: a. CH3C(=O)CH2CH2C(=O)OCH3 (1,4-dioxacyclohexane compund) + HBR (reagent)
Pyridine is a heterocyclic aromatic compound similar in structure to benzene. It is widely used as an organic base because it reacts with acids, but is inert to most reagents.Write an equation with structural formulas to show how pyridine reacts w..
How many liters of chlorine gas at 650mmHg and 25degress C can be produced by the reaction of 2.0L of 2.50M HCl soultion with the excess Mno2
You have a 100.0- mL graduated cylinder containing 50.0 mL of water. you drop a 115-g piece of brass into the water. To what height does the water rise in the graduated cylinder.
How many mL of .100 M KCI(aq) are required to react completely with 4.325 g of solid Pb(NO3) to form PbCl2?
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