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What is the pH of a solution made by mixing 40.00 mL of 0.100 M HCl with 25.00 mL of 0.100 M KOH? Assume that the volumes of the solutions are additive. Answer A. 0.64 B. 1.64 C. 12.36 D. 13.36 E. 10.00
The enthalpy change for the reaction of hydrogen gas with flourine gas to produce hydrogen flouride is -542kJ fo the equation as written H2+F2=2HF deltaH=-542kJ
A sample of N2 gas occupies 2.40 L at 20oC. If the gas is in a container that can contract or expand at constant pressure, at what temperature will the N2 occupy 4.80 L
a sample of helium gas initially at 37 degrees celsius, 785 torr and 2.00L was heated to 58.0 degrees celcius while the volume expanded to 3.24L. What is the final pressure in atm.
A solution containing iodide ions has a percent transmittance reading of 72.3%. what is the molarity of the iodide ion in this solution
A red laser pointer emits light with a wavelength of 650 nm. A) What is the frequency of the light. B) What is the energy of 1.00 mole of these photons
Consider the figure that shows the distillation apparatus. Describe the practical reasons behind the direction of the flow of water through the condense. It will not let me upload the picture of the figure. It keeps saying that there is an error? ..
What is the concentration (in M) of the chloride ion when 16.2 mL of a 0.542 M solution of barium chloride is combined with 18.4 mL of a 0.619 M solution of aluminum chloride? Assume the volumes are additive.
Although there are a great variety of lipid structures, most lipids contain: A) A large hydrocarbon portion and no polar groups B) A large hydrocarbon portion and a few polar groups
If you are uncertain as to which layer in the separatory funnel is aqueous when extracting an aqueous solution with an organic solvent, how could you settle the issue
Most compounds that contain N-H bonds are basic, but saccharin is acidic
You inherit a gold bar that measures 7.0 inches by 3.0 inches by 2.0 inches. How many ounces does the bar weigh?
How would you experimentally demonstrate whether the newly entering acetyl group from the breakdown of glucose is or is not the carbon oxidized in the citric acid cycle? Show your work and draw out experiment.
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