Problem based on forming a buffer solution
How many grams of sodium lactate (NaC3H5O3) should be added to 1.00 L of 0.260 M lactic acid (HC3H5O3) to form a buffer solution with pH 2.90? Assume that no volume change occurs when the NaC3H5O3 is added.
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A student had 1.00 L of a 1.00 M acid solution. Much to the surprise of the student, it took 2.00 L of 1.00 M NaOH solution to react completely with the acid. Explain why it took twice as much NaOH to react with all the acid.
Three single phase two winding transformers, each rated 400MVA, 13.8/199.2kV, with leakage reactance Xeq=0.10PU, are connected to form a three phase bank. The high voltage windings are connected in Y. A three phase load is connected on the hi
pka2=6.88, pka3=7.90,pka4=12.10) assume you begin with 10.0mL of a .10M solution. Calculate the pH of the solution and the equilibrium concentrations of all species present.
How efficient is the extraction of tea leaves containing tra1.0g of caffeine with two 30-mL portions of chloroform over that of of a single-step extraction(KD = 8.36 at 25 degrees C)
A unit all for uranium has orthorombic symmetry with a,b, and c lattice parameters of 0.286, 0.587, and 0.495 nm. respectively. if its density,atomic weight and atomic radius are 19.05 g 238.03 g/mol and 0.1385 nm, respectively, cm^3 compute t
A solution is prepared by dissolving 2.33g of C60 in 100.0g of toluene. Given that the vapor pressure of pure toluene is 5.00kPa at 30C what is the vapor pressure of toluene in the solution?
If the aluminum block is initially at 25^circ C, what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alc
Hydrazine, N2H4, is used as a rocket fuel. It reacts with oxygen to to form nitrogen and water. How many grams of hydrazine would be needed to react with 100 grams of oxygen?
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult