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1.a) Calculate the pH of a solution which is 0.0030 M in KOH and 0.023 M in NaNO3using activities.
b) Calculate a pH for the same solution, ignoring activities.
State the mass balance and charge balance equations for a solution containing .200F La2 (SO3)3 and .100 F Na2S (pka 1 and pk2 for H2SO3 are 1.852 as well as 7.157 respectively and 7.02 and 13.50 for H2S respectively)
The following data is obtained from titration of 8.0 ml aliquots with 0.063 M NaOH. To all aliqouts, 6.0 mL of 99% isopropanol is added. Use the following data to determine the rate constant of the reaction.
Calculate the kinetic energy of 2 kg of helium gas at 25 C. If this energy could be captured and used to accelerate a 1400.0 kg automobile, how fast would the car travel on a flat surface (ignoring friction)
When working NMR questions, solutions maunuals say that the peaks are 1.0 spaces long or 5.5 spaces long.
Assume you take a sample of 11.4 g Al and oxidize i (In an excess stream of O2) to produce 2.10g of Al2O3. Calculate the percent yield of Al2O3. Reaction 4 Al + 3 O2 -> 2 Al2o3.
Regard as the mechanistic step in the conversion of 1-butanol to 1-bromobutane in which bromide ion displaces water from the oxonium ion What evidence, if any, is there that this step involves backside attack by the nucleophile
Create an online for a research paper. The topic is "Listeria in ready to eat foods". Please include references
What is the chemical formula of the precipitate that forms when a a aueous solution of sodium chloride is mixed with an aqueous solution
Briefly explicate why the concentrations of HC2H3O2 and C2H3O2- ion change when you add 0.10M HCl solution to the HC2H3O2-NaC2H3O2 buffer solution. State an appropriate chemical equation showing the changes that occur.
exactly what weight of dry ice is needed to react with 2mmol of phenylmagnesium bromide? would an excess of dry ice
Problem- Cyclohexenone is a useful starting material for drug synthesis. For each reaction below, predict the major addition product for the reaction between an ?,?-unsaturated ketone and carbon nucleophile.
Question- Consider a fuel cell that uses the reaction of ethanol with oxygen to produce electricity, CH3CH2OH(l) + 3O2(g) yields 2CO2(g)+ 3H2O(l)
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