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Consider the titration of 25.0 mL of 0.10M HA(Ka=1.2x10^-5) with 0.10M NaOH. Calculate the pH after the following amounts of NaOH are added.
A) 0mL NaOH added( before the titration started)
B) 12.5mL of 0.10M NaOH added to 25.0mL of 0.10M HA
C) 25.0mL of 0.10 M NaOH added to 25.0 of 0.10M HA
D) 40.0mL of 0.10M NaOH added to 25.0mL of 0.10M HA
Calculate the amount of heat trasnferred when 3.55 g of Mg(s) reacts at constant pressure. 2Mg(s) + 02(g) ---> 2MgO(s) heat= -1204kJ
Draw the accepted mechanism for each reaction and illustrate how each stereoisomer is formed in the reaction.
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Calculating Value of Kb in Substances and pKb for Base, Codeine (C18H15NO3) is a weak organic base. A 5.0x10-3 solution of codeine has a pH of 9.95.
One radio station operates on an assigned frequency of 88.1 megahertz while another operates on an assigned frequency of 1460 kilohertz. What is the ratio of the larger to smaller value?
How much heat is required to warm 223 g of ice from -46.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
Write the balanced net ionic equation for this reaction. How many H+ are there in the balanced equation?
Estimate the molar heat of vaporization of a liquid whose vapor pressure doubles when the temperature is raised from 85ºC to 95ºC.
write the full mechanism and balanced equation for the reaction of horseradish peroxidase as an enzyme
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