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You need to produce a buffer solution that has a pH of 5.06. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? The pKa of acetic acid is 4.74.
Molecules which are polar overall exhibit a property called a dipole moment. Which of the following possesses polar bonds but has no dipole moment
If a 0.350g tablet of NaOH is added to 100ml of 0.6 M H3PO4, how much water will be produced?
A bottle contains 175 m: of insulin at a concentration of 20.0 mg/ml . What is the total mass of insulin in the bottle?
Derive an expression for (δU/δV)T for a gas that obeys the van der Waals equation of state.
Consider the mechanism of reduction of WO3. At least two mechamisms are possible to the formation of HxWO3 during intercalation of WO3
find the total heat released by the reaction of 100.0 mL of 0.8500M NaOH and 100.0 mL of 0.8404M acetic acid.
The mass of an electron is 9.11 * 10^{-31} kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31*10^{-10}m, how fast is the electron moving relative to the speed of light?
At 1100 K, Kp = 0.25 for the following reaction. 2 SO2(g) + O2(g) reverse reaction arrow 2 SO3(g) What is the value of K at this temperature?
What holds solids or liquids and carries out reactions? what is used to mix or combine two or more substances? what it used to support an iron ring or clamp?
What is the pH of a solution prepared by mixing 25mL of .10M CH3CO2H with 25 mL of .010M CH3CO2Na? Assume that the volume of the solutions are additive and that Ka= 1.8 x 10-5 for CH3CO2H.
0.25 g of hydrogen chloride HCl is dissolved in water to make 8.0 L of solution. What is the pH of the resulting hydrochloric acid solution?
Do not delete any of the atoms or bonds in the ring or directly attached to the ring with the Erase button, and do not move atoms or groups directly attached to the ring by dragging them.
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