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A buffer was prepared by adding 2.4 g of ammonium nitrate to 100.0 mL of 0.30 M ammonia (Kb = 1.8 × 10-5). To this solution was then added 10.0 mL of 0.30 M sodium hydroxide, what is the pH change?
Various types of medicines use in daily life? and classify them into analgesics, antipyretics, antibiotics, sedatives, antiseptics.
What is the order of increasing polarity of the compounds: benzophenone, trans-stilbene, 2-naphthol, benzoic acid
Compute the heat capacity of the calorimeter in J/K assuming that no heat leaks or out of the calorimeter.
Using the given reduction potential determine what is the voltage for these given electrochemical cell
How many grams of sodium bicarbonate and sodium carbonate, respectively, are needed to make 3 liters of 0.075 M buffer,
Calculate the pH of the solution after the addition of 100mL of 1.00 M HCL. the Ka for Hf is 3.5*10-4
At what angle (in degrees) does first-order diffraction from layers of atoms 169.1 pm apart occur, using x rays with a wavelength
The mass of a cube of iron is 324 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
If 29.8 mL of 0.102 M acid with a Ka of 0.000015 is titrated with 0.107 M NaOH solution, what is the pH of the titration mixture at halfway to the equivalence point?
What mass of methane, CH4, is contained in a 500.-mL sample of CH4 at STP?
After the Ketone react with sodium borohydride in ethanol. HCl be added dropwise, and then remove the ethanol by distillation, then add DCM and ice water.
A student titrated 20.0 mL of 0.410M HCL with 0.320M NaOH. Find the pH, [H3O+], and [OH-] when 21.50mL of titrant has been added.
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