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What is the hydronium-ion concentration of a 4.07 10-4 M solution of p-bromobenzoic acid, BrC6H4COOH, for which Ka = 1.00 10-4?
show states of matter and charges where appropriate. Also find molecular equation, total Ionic Equation, and Net Ionic Equation.
A piece of a newly synthesized material of mass 25.0g at 80 degrees C is placed in a calorimeter containing 100g of water at 20 degrees C. If the final temp of the system is 24 degrees C, what is the specific heat capacity of this material?
You have samples of approximately 8mL solution with ph ranging from 4 to 10. Calculate the volume of 1M HCIO4 needed to lower the ph to 2.5.
Calculate the equivalent number of moles of potassium permanganate? 3) calculate the clarity of the potassium permanganate solution?
The Al2O3 does not react. If the sample residue weighs 2.489 g, what is the mass fraction of Fe2O3 in the original sample?
A battery charger use to recharge NiMH batteries can deliever as much as 0.30 A of current to each battery.
how many grams of KOH are present in 32.5mL of a 6.42 M KOH solution
If an insufficient amount of liquid unknown had been used, how would this have affected the value of the experimental molar mass?
Estimate the vapor pressure of water a solution containing 30 g of glucose per 500 g of water at 25C, given that the vapor pressure of pure water is 2.338 KPa at the same temperature.
Twice that amount of light is able to pass through the same thickness of lime jello prepared on Tuesday. What is the relative concentration of the food dye that give rise to the green color in Monday's dessert compared to Tuesday's dessert?
What volume of glacial acetic acid (d= 1.06g/ml) and what weight of solid potassium acetate are required to prepare 5 liters of 0.2M acetate buffer
the solution has an osmotic pressure of 4.18mm Hg at 25C,what is the molar mass of new protein?
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