What is the ph at the half stoichiometric point
What is the pH at the half stoichiometric point, if you are doing a titration with 20.0 mL of 0.200 M trimethylamine and with 0.100M hydrochloric acid? pkb=4.19
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An FM station broadcasts at 106.9 MHz, calculate the wavelength of the corresponding radio waves? What is the amount of energy packaged in a photon with a wavelength of 310 nanometer and calculate the frequency of electromagnetic radiation with a
Prepare a standard of lidocaine in methanol with a final concentration of 1.00 mg/mL using the powder lidocaine/HCl. Show the calculations and explain how you take the salt form into account.
What is the composition of vapor of a pentane-hexane solution that has a vapor pressure of 373 torr at 25 degree celcius? Given is Pure Hexanes and pentanes vapor pressure at 25 degrees celcius. Pentane - 511 torr. Hexane -150 torr.
A chemist dissolves 0.099g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 8.7-mL sample of this solution is then transferred to a second 500-mL volumetric flask and diluted. What is the molari
If you prepare a 1.00 solution of beginning with water at 27.5, what is the final temperature of the solution (in )? Assume that the specific heats of both pure and the solution are the same, 4.18 .
A manufacturer of bicycles has 4819 wheels, 2305 frames, and 2250 handlebars. How many wheels are left over? How many frames are left over? How many handlebars are left over? Which part limits the production of bicycles?
Compare the rates of effusion for oxygen molecules as compared to hydroge molecules. which will effuse faster, and by how much?
Use the Internet to research the Apple Corporation, its current position and reputation regarding ethical and social responsibility, and the strategies that it currently employs to market its products.
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Question: Identify a true statement about validity as applied to a test. Multiple choice question
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What is another way to say ". It is important to ensure that the youth understand what the study involves, what their participation entails