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Question- Part 1) If 10 mL of a 0.20M CH3COONa and 10 mL of 0.10M CH3COOH (Ka=1.7 x 10^-5) are mixed, using a one step solution, state the value of the pH.
Part 2) Indicators change colors over about 1-1.5 pH units. For bromthymol blue, the pKa is about 7.0. Estimate the pH range over which the color change occurs for bromcresol green indicator.
Show all work, use additional paper if necessary.
The molar stoichiometric ratio of nitrogen produced to ammonia reacted in the reaction equation is one to one, and the mol CO2/mol C6H12O6 = 2. How much (in g mol) (a) glycerol was produced and (b) how much biomass reacted to produce the 52.4 L of..
If you use 25.0 mL of the 0.24M sodium hydroxide solution to titrate a 0.40 M solution, how many mL of HCl will be used
A sample of oxygen occupies 10.0 L at 4.00 atm pressure. At what temperature will the pressure equal 3.00 atm if the final volume is 8.00 L.
question 1 the variation of emf for the cell below with temperature is shown in the graph below.nbspzns zncl2 aqueous
Osmostic pressure causes ground water to rise in a tree trunk. What is the colligative concentration required to drive water to the top of a 100 ft tree
Consider the reaction between 50.0 mL of 0.200 M sodium hydroxide and 75.0 mL of 0.100 M HCl at 25 degrees Celsius. Which of the following is true?
Which of the following buffer systems would be the best choice to create a buffer with the pH= 9.00? For the best system , calculate the ratio of the masses of the buffer components required to make the buffer.
An experiment was performed to determine the Ksp of Ca(OH)_2_. A solution containing 2.00 x ^-2 M Ca(NO3)_2_ was saturated with Ca(OH)_2_ and filtered. Two samples of the saturated solution were titrated with 5.021x10^-2 M HCI, in order to determi..
The goal of the recrystallization procedure is to obtain purified material with a maximum recovery. For each of the following situations, explain why this goal would be adversely affected.
Identify the weaker acid in each of the following pairs: a)HNO3 or HCO3^- b)HSO4^- or H2O c)H2SO4 or H2CO3
because of the slightly solubility 0.59mgl. of ba3po42 all of the ba2- and po43- do not precipitate from solution.a.
In the carbonic acid equilibrum, what happened to the sized of the balloon upon addtion of more acid (HCl), and what happened to the sized of balloon upon addition of NaOH (Show the answer using equilibrum equation).
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