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What is the concentration of 0.44% Ba(OH)2 in terms of normality?
How many milliliters of 22% w/v Na2SO4 would be required to prepare 500ml of a 0.5 N Na2SO4 solution?
A voltaic cell prepared using aluminum and nickel has the following cell notation.
using half reactions write a balanced oxidation-recuction reaction.oxidation of 1 to 12 and reduction of mn02 to
Acetic acid, CH3COOH, freezes at 16.6ºC. The heat of fusion, DHfus, is 69.0 J/g. What is the change of entropy, DS, when 1 mol of liquid acetic acid freezes to the solid at its freezing point
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
A typical deposit of cholesterol, C27H46O, in an artery has a mass of 3.90 mg. How many molecules of cholesterol are present in this deposit?
One tablespoon of peanut butter has a mass of 15g . It is combusted in a calorimeter whose heat capacity is 130kJ/ degrees C . The temperature of the calorimeter rises from 22.1 degrees C to 25.2 degrees C. Find the food caloric content of peanut ..
A mass of 95 g of ice at 0C is combined with 105g of water at 25 C the final temperature of the mixture is 0 C what mass of ice melts. (heat of fusion=333J/g specific heat capacities ice=2.09, liquid water =4.184)
At 50 degrees celsius a sample of ammonia gas exerts a pressure of 6.5 atm. What is the pressure when the volume of the gas is reduced to 20% of the original value at the same temperature
Place the following complex numbers in a two-dimensional complex plane and find their absolute value lzl and phase angle arg
what will be the heat capacity in units of jk of a constant pressure coffee-cup calorimter that contains 100.0 ml of
Calculate an approximate delta_h in kilojoules for the industrial synthesis of ethyl alcohol from ethylene: C2H4(g) + H2O(g) -> C2H5OH
suppose that 194.2 j of heat energy is required to completely vaporize 3.3 g of a pure liquid. if the molar mass of the
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