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Question- Show why a buffered solution does not change its pH significantly when small amounts of bases or acids are added, using the following solutions of A)0.1 M HCl B) ).1M NaCH3COO and 0.1 M CH3COOH. Calculate the pH of the solutions before and after addition of 2.00 mL of 0.1 M NaOH. Show detailed calculations or explain how you obtained your answer.
I need help for above question. Show each steps for the above problem.
the temperature of a lead fishing weight rises from 15 oc to 45 oc as it absorbs 22.5 kj of heat. what is the mass of
Dinitrogen pentoxide is a product of the reaction between P4O10 and HNO3. Balance this reaction and calculate the theoretical yield of N2O5 if 79.7 g of P4O10 are reacted with excess of HNO3.
Write a balanced net ionic equation to show why the solubility of FeCO3(s) increases in the presence of cyanide ions and calculate the equilibrium constant for this reaction.
Light hits a sodium metal surface and the velocity of the ejected electron is 6.61 x 105 m.s-1. The work function for sodium is 150.6 kJ.mol-1. What is the frequency of the incident light on the sodium metal surface
The free radical cholrination of propane yields a mixture of two monochlorination products, 1-chloropropane, and 2-chloropropane. Provide a mechanism for the following: the initiation step; the propagation step which lead to the products; five dif..
Problem- The equation of line determined from a Beer's Law plot is y = 0.195x + 0.4. What is the concentration of an unknown water sample if the assumed resistance is 650 ohms
what is the minimum number of Kilo Joules needed to change 40 grams of water 100 C to steam at the same temperature and pressure?
Calculate the mass in grams of hydrogen chloride produced when 5.6 L of molecular hydrogen measured at STP react with an excess of molecular chlorine gas
A vessel of volume 22.4 dm^3 contains 2.0 mol H2 and 1.0 mol N2 at 273.15K initially. All the H2 reacted with sufficient N2 to form NH3. Calculate the partial pressures and the total pressure of the final mixture.
In your report be sure to compare and contrast the system you used in your investigation with the carbonic acid/carbonate buffer system in the blood.
A 54.7-g sample of aluminum at 95.0 oC is dropped into 35.0 g of water at 40.0 oC. What is the final temperature of the mixture? (specific heat capacity of aluminum = 0.89 J/goC; specific heat capacity of water = 4.184 J/g degreesC)
A titration was performed between 25 mL of 0.100 M NH3 and 0.100 M HCl. Calculate the pH of NH3 solution at the following points during the titration.
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