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Calculate the pH at the equivalence point in the titration of 54 mL of 0.10 M methylamine with a 0.20 M HCl solution. Ka = 4.4 X 10^-4
explain the following given for each statement in determining the sequence of peptide with concise (short) but complete response. you must state the specificity of each statement implication in determining the sequence of octapeptide.
A 24 L sample of a gas at fixed mass and constant temperature exerts a pressure of 3.0 atm. What pressure will the gas exert if the volume is changed to 16 L?
Given an unknown sample of a solid, how would you decide that it is necessary to do a recrystallization. recystaillization-Why must you use a minimal amount of hot solvent
What is the volume of ammonia gas, measured at 489.9mmHg and 37.4oC, is required to produce 8.41g of ammonium sulfate according to the following balanced chemical equation
Your instructions should include the volumes of the solutions required. (1b) (4 marks) What is the buffer capacity of the resulting solution
A tank contains 40 lb. of air, 20 lb. of CO2 and 30 lb. of SO2. Compute the volume of the tank if the total pressure of the mixture is 44.08 psi at 86°F. What is the partial pressure of each constituent and the average molecular weight of the mixt..
write a balanced chemical equation for this reaction when ferrophosphorus reacts with pyrite making iron ll sulfide and
Br2 and ICl have similar molecular weights which compund has a higher boiling point specifically
Draw a cooling curve for a sample of steam that cools from 110 degrees C to -10 degrees C. indicate the segments of the graph that correspond to each of the following: a)solid; b) freezing; c) liquid; d) condensing; e) gas.
Determine how much dolomitic lime(is an anhydrous carbonate mineral composed of calcium magnesium carbonate CaMg(CO 3 ) 2 ) is required to apply to raise the pH to 7.0?
the vapor pressure of water at 90.0 is 526.8mm hg what mass of ethlene glycol (mw 62.7gmol) when added to 1.50 kg of warer will lower the vapor ptessure
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 9.00 102 mL of solution and then titrate the solution with 0.128 M NaOH.
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