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Question- Calculate the ph of a mixture containing 30ml 0.10M NaOH + 30ml 0.10M HC2H3O2 (Ka of HC2H3O2 = 1.8 x 10^-5)
Calculate the ph of a mixture containing 30ml 0.10M NH4OH + 10ml 0.10M HCL (Kb of NH4OH = 1.8 x 10^-5)
Please explicate how to do these equations when the first equation involves a strong base/weak acid as well as the second involves a weak base/strong acid
Various metals pack in cubic unit cells. The density of a metal and length of the unit cell can be used to find out the type for packing. For instance sodium has a density of 0.968 g/cm3 and a unit cell side length a of 4.29 Å. (1 Å = 1. 10-8 cm.)
Calculate the yield of CO2 resulting from a complete combustion reaction of 275 grams heptane, C7H16, in the presence of excess oxygen.
Niobium (Nb) has a BCC cubic crystal structure, and an atomic radius of 0.144 nm. a) Calculate the edge length (d) of a niobium unit cell:
What is the pH of a solution that is 0.30 M in Aniniline, C6H5NH2, and 0.15 M in Anilinium Chloride, C6H5NH3+ Cl-
It takes 17.87mL of 0.002587 M K2Cr2O7 to reach the endpoint. Define what is the nitrite concentration in the original waste water sample measured in mg /L
Calculate the quantity indicated for each of the following electrolyses. Enter scientific notation as 1.23E4. (a) [Cu2+] remaining in 5.70E2 mL of a solution that was originally 0.412 M CuSO4, after passage of 3.50 A for 289 s and the deposition o..
Given that the energy of combustion (?E) for lauric is -37.1 kJ/g, calculate the heat capacity of the bomb calorimeter. Make sure you enter kJ/C for your unit behind the number.
What is the pH of a solution resulting from the titration of 50 mL of 0.050 M acetic acid solution, CH3COOH, with 50 mL of 0.050 M NaOH solution. Calculate your answer to two decimal places.
Explain why it could be a health hazard to improperly smell a chemical in the laboratory.
Find out the shape, ideal bond angles and direction of any deviation from the angles for each of the following (a)CIO3- (b)IF4- (c) SeOF2 (d)TeT5-
Calculate the aqueous solution with the highest freezing point. These are all solutions of nonvolatile solutes and you should assume ideal Van't Hoff factors where applicable
a reaction has a rate law rate kab2. what is the overall order of the
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