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Suppose 128 mL of 0.429 M MgCl2 is mixed with 142 mL of 0.279 M NaOH and allowed to react completely. Volume change at precipitation can be ignored. How many grams of Mg(OH)2 will form? What is the molar concentration of Mg2+ in solution? What is the molar concentration of Cl- in solution? What is the molar concentration of Na+ in solution? What is the molar concentration of OH- in solution?
Does the equilibrium constant increase or decrease as the tempearture increases or decreases
Calculate the percent ionization of hydrazoic acid (HN3) in solutions of each of the following concentrations
It takes 51.0 J to raise the temperature of an 11.0 g piece of unknown metal from 13.0 degrees celcius to 24.0degrees celcius What is the specific heat for the metal? Express your answer numerically, in Joules/gram Degrees celcius
A student was using the concentrations of pipet calibration data listed in the Background Information for the determination of ka or propionic acid. Explain the problem the student encountered when preparing the following equilibrium mixture.
Cadaverine are 9.13 and 10.25. If the ends of these molecules look the same, why do they have different pkas?
Suppose that the silver-silver chloride electrode in the figure is replaced by a saturated calomel electrode. Calculate the cell voltage if [Fe2+]/[Fe3+] = 5.0 10-3. V
Calculate the change in pH of rainwater resulting from an increase in the Pressure of CO2 from 10^-3.5 atm to 10^-3.0 atm due to fossil fuel emissions
Which of the following is the best reason as to why increasing the NaCl concentration increases the temperature at which the two strands of DNA "melt" apart
you are back at your plant the monday after the dangerous when wet leaking tanker incident happened and you are telling
Determine how many grams of Phosphorus tri-fluoride will be produced when 40.1 g of F2 mix, and the reaction has a 78.1% yield?
What is the maximum kinetic energy of a photoelectron ejected fromcesium by 555 nm light? Note that if the wavelength of light usedto irradiate the cesium surface becomes longer than 660 nm
calcium hydride cah2 reacts with water to form hydrogen gas.cah2s 2 h2ol caoh2aq 2 h2gthis reaction is sometimes used
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