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You have separate solutions of HCl and H2SO4 with the same concentrations in terms of molarity. You wish to neutralize a solution of NaOH. Which acid solution would require more volume (in mL) to neutralize the base? Why?
Someone is forced to titrate a solution containing 100 mL of .250M sodium acetate with .125 M nitric acid. Calculate the pH of the solution after adding 50.0 mL of the nitric acid.
Uric acid dissociates as shown in the figure at the right with a pKa of 5.80, and can be treated as a simple monoprotic acid in this pH range. Its solubility in urine depends on the relative amount of protonated and unprotonated forms. A urine sam..
a solution is prepared by dissolving 4.21g of a nonelectrolyte in 50.0 g of water. if the boiling point increases by
cake alum aluminum sulfate is commonly used to purify sewage. what mass of precipitate aluminum hydroxide forms when
Explain why hermitian operators are important in quantum mechanics. Use the expression for the momentum operator ˆpx to derive the expression for the kinetic energy operator ˆ Tx.
Compounds with nearly identical molar masses often have very different physcial properties. Choose the compound with the lower value. Solubility in water: di-ethylether or 1-butanol. Why is it lower?
The partial pressure of O2 in air at sea level is 0.21 atm. Using Henry's law, calculate the molar concentration of O2 in the surface water of a mountain lake saturated with air at 20C and an atmosphere pressure of 650 torr.
According to the VSEPR theory, the electrostatic repulsion between electron pairs surrounding an atom causes. An electron sea to form
Given the initial rate data for the reaction A+B->C, determine the rate expression for the reaction. [A], M [B], M delta[C]/delta t (initial) M/s
1 research on the causes of coronary artery disease.on the basis of your research respond to the following state the
a solution of 0.90 g of an unknown nonelectrolyte in 300 ml ofwater at 27?c has an osmotic pressure of 38.4 torr.what
A 1.33 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mole fraction of the citric acid.
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