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A solution is prepared by adding 0.002 moles of sodium acetate to a 100 ml of 0.03 M acetic acid. Ka(CH3COOH)= 0.000018
(a) Assuming that no volume change occurs upon addition of the sodium acetate what is the pH of the solution?
(b) What is the concentration of the acetate ion?
(c) what is the concentration of the acetic acid?
an object weighing 335 n in air is immersed in water after being tied to a string connected to a balance. the scale now
you and another student were each given an unknown compound. both samples contained colorless material. you each used
What volume in liters of 0.94 M KOH solution should be added to a 0.090 L solution containing 9.1 g of glutamic acid hydrochloride
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Hydrogenation reactions are used to add hydrogen across double bonds in hydrocarbons and other organic compounds. Use average bond energies to calculate DELTA Hrxn for the following hydrogenation reaction
In this experiment we reduced methylene blue with ascorbic acid using HCl as a catalyst. Given that the half reaction for the reduction of methylene blue is MB+(ox) +2H +2e ----->MBH2(red) (potential = 100 mV)
A sample of gas has a volume of 3.40L at 10.0C what will be its volume be at 100C pressure rremaining constant
Rank these elements according to first ionization energy (highest to lowest) : Ne, F, O, N, C, B, Be, Li. HINT: There is a general trend for ionization energy within a period of the periodic table
Equal volumes of 1 x 10-4 M solutions of Cd2+ and CO32- ions are mixed in one flask and equal volumes of 1 x 10-4 M solutions of Ag+ and CrO42- ions are mixed in a second. Which substances precipitate given that the Ksp values of CdCO3 and Ag2CrO4..
A 29.20 g piece of iron and a 25.30 g piece of gold at 100.0 degree C were dropped into 980.0 mL of water at 15.65 degree C. The molar heat capcities of iron and gold are 25.19 J/(mol degree C) and 25.41 J/(mol degree C), respectively.
In a Millikan oil-drop experiment, the charges on several different oil drops were as follows: -5.92; -4.44;-2.96; -8.88. The units are arbitrary. What is the likely value of the electronic charge in these arbitrary units
Thermodynamic Processes. a volume of 20 cu ft of air at pressure of 50 psig is heated and expanded to 30 cu ft and 40psig find the change in the energy of air in joules.
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