Calculate the ph under the given conditions
In the titration of 100.0 mL of 0.100 M methylamine, CH3NH2 (Kb = 3.7 * 10-4), with 0.250 M HCl, calculate the pH under the following conditions.
(a) after 0.0mL have been added.
(b) after 20.0mL have been added.
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What masses of calcium sulfate and phosphoric acid can be produced from the reaction of 1.0 kg calcium phosphate with 1.0 kg concentrated sulfuric acid (98% H2SO4 by mass)?
Consider the titration of 100.0 mL of 0.200 M acetic acid (Ka = 1.8 10-5) by 0.100 M KOH. Calculate the pH of the resulting solution after the following volumes of KOH have been added. Enter all answers to two decimal places.
When monitoring the reaction between benzene and 2-chloro-2-methyl-propane using FeBr3 as the catalyst, researchers observed the formation of a new alkyl halide. Draw the structure of this compound and show how it was formed using an arrow-pushing
How many grams of sodium formate, NaCHO2, must be added to 750.0mL of .250 M of formic acid, HCHO2, to obtain a buffer with pH of 5.5
A 530. g piece of copper tubing is heated to 89.5°C and placed in an insulated vessel containing 159 g of water at 22.8°C. Assuming no loss of water and heat capacity for the vessel of 10.0 J/K, what is the final temperature of the system
It takes 55.0 to raise the temperature of an 11.7 piece of unknown metal from 13.0 to 24.0. What is the specific heat for the metal?
If the ground temperature is 20?C, the lapse rate is zero, and the balloon is in hydrostatic equilibrium at a cruising altitude of 900 hPa, determine the temperature of the air inside the balloon.
Tincture of iodine is I2(s) dissolved in ethanol, C2H5OH. How many grams of solvent are present in 1000. g of this solution?
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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