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A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Determine the pH of the solution after the addition of 50.0 mL of HNO3. The Kb of NH3 is 1.8 × 10-5. This is the ½ equivalence point. pH = pKa (of conjugate acid) since this is a titrationof a base.
A 100.0 mL sample of 0.20 M HF is titrated with 0.10 M KOH. Determine the pH of the solution after the addition of 200.0 mL of KOH. The Ka of HF is 3.5 × 10-4. This is at the equivalence point; so, determine the pH of the resulting salt (KF).
Find the Qsp if The solubility product of Ag 2 CO 3 =6.2 × 10-12. Also determine whether a precipitate forms in the solution (Assume 20 dropsper milliliter.)
Suppose that microwave radiation has a wavelength of 11.2cm. How many protons are required to heat 245mL of Coffee from 25.0 C to 62.0C? Assume that the coffee has the same density,
Which one of the following does not react with aqueous sodium hydroxide?
Determine symmetry types for all normal modes of vibration for NH3, which has trigonal pyramidal geometry C3v. Use the internal coordinates analysis method, i.e. 3 bond stretching, deltaD
A racquetball court is 20 ft wide. If we consider only motion along this direction and treat the ball as a particle in a box, if the ball weighs 1.4 ounces, what quantum number corresponds to a racquetball hit 100 km per hour and what speed would ..
How many moles of H+ (H3O+) are produced in 40.0 m of 0.025 M HCL?
You are planning to use the technique of recrystallization to purify A and realize that you will first need to determine which solvent or solvent pair would be appropriate. Describe the solubility properties of the solvent that you would want to u..
Determine the volume of sulfuric acid solution needed to prepare 37.4 g of aluminum sulfate, Al2(SO4)3, by the following reaction
The values obtained were 0.207 and 0.900 respectively. Calculate the molar concentrations of the oxidized and reduced forms of the NAD.
determine at what pressure will pure h2o nbspstart to boil if its temperature is seventy five degree celsius and given
flask apparatus, which now contains 2.00 L H2 at a pressure of 360 torr and 1.00 L N2 at an unknown pressure. if the total pressure in the flasks is 320 torr after the stopcock is opened, determine the initial pressure of N2 in the 1.00-L flask.
Calculate the concentrations of each of the ions in 0.12 M (NH4)2HPO4. a) [NH4+], M b) [HPO42-], M
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