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Calculate molar extinction coefficients from a UV visble spectrometer and use it to determine the geometry of complexes
which portion of the titration curve are you in to reach pH = 7? Show your calculations to prove that dilution of 10,000 gal aniline requires 0.58 gal of this acid.
19.0 g of sodium hydroxide is dissolved in 731 g of water. Calculate the mass percent of sodium hydroxide in the resulting soulution.
Why is this only an approximation? Under what conditions can the selectivityremain temperature-independent?
How many milliliters of a stock solution of 5.60 M HNO3 would you have to use to prepare 0.160 L of 0.510 M HNO3; if you dilute 18.0 mL of the stock solution to a final volume of 0.330 L, what will be the concentration of the diluted solution
You make 1.00 L of a buffered solution (pH = 4.00) by mixing acetic acid and sodium acetate. You have 1.00 M solutions of each component of the buffered solution. What volume of each solution do you mix to make such a buffered solution
Concentrated nitric acid (HNO3) has a density of 1.42 g/mL and is 70% nitric acid. Calculate the molarity of the acid if 30 mL of the concentrated acid is mixed with 255 mL of water.
Analysis of water in a sediment sample at equilibrium at ph 7.00 showed [so42-] = 2.00 x 10^-5 m and a partial pressure of h2s of 0.100 atm. show with appropriate calculations if methane, ch4, would be expected in the sediment.
combustion of 1.96g of a compound containing only hydrogen and carbon produced 6.35g of co2 and 2.25g of h2o. the
A saturated solution of calcium hydroxide contains .38 grams of calcium hydroxide in each 250 mL of solution. What is the pH of the saturated calcium hydroxide?
gold can be plated out of solution according to the equationau3aq 3e- ---gt aus what mass of gold in grams will be
The pressure of 4.0 L of an ideal gas in a flexible container is decreased to one-fourth of its original pressure as well as its absolute temperature is reduced to one-seventh of the original. Explain what is the final volume of the gas
what is the amount of heat kj required if 64.0 kg of h2o is heated from 25degc to 85degc? 200.0 g al c 0.900 at
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