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What mass of barium sulfate can be produced when 100.0 ml of a 0.100 M solution of barium chloride is mixed with 100.0 ml of a 0.100 M solution of Iron(III) sulfate
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Compute the pH of the solution before the addition of any HNO3. Kb of NH3 =1.8 × 10-5.
The introduction state that often the rate doubles for each temperature increase of 10degree celcius. What value of the activation energy would cause the rate to double between 25~35degree celcius? ((k value)
When iron chloride FeCl3 is dissolved in water the solution becomes acidic. The preparation of the Fe(NO3)3 solution and the KSCN solution used 0.5 M HNO3 as the solvent instead of water. Explain why this was done
Diethyl ether has a deltaH vap of 29.1 kJ/mol and a vapor pressure of 0.703 atm at 25.0 C. What is its vapor pressure at 81.0 C
write the equation for self-ionization of water and why ammonia is a weak base.
What effect on the calorimeter constant calculated would be observed if the calorimeter cup were made of a conducting material(such as metal)rather than plastic foam
Will water or cyclohexene be present in greater amount in the distillate from co-distillation. Explain.
if the freezing point of a .106 m CH3COOH solution is -.284 degrees celsius, calculate the percent of the acid that has undergone ionization.
A solution of a protein contains 0.382 grams of the material in 1.00 L of solution. At a temperature of 25°C,this solution has an osmotic pressure of 1.07 torr. Calculate the molar mass of the protein.
when aluminum is heated in oxygen, aluminum oxide is formed. What weight of the oxide can be obtained from 25.0g of the metal.
an analytical chemist has determined by measurements that there are moles of magnesium in a sample of talc. how many
The vapor pressure of water at this temperature is 23.76 Hg. The piston is depressed at constant temperature so that the gas is compressed to a volume of 2.67 L. What is the vapor pressure in the compressed gas mixture
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