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For this equilibrium reaction, predict the mass action ("the shift") to re-establish equilibrium conditions as described: The pressure if the system is increased by decreasing the total volume. a) shift to the left b)shift to the right c) no change
A 4.70 g nugget of pure gold absorbed 285 J of heat. The initial temperature was 24.0°C. What was the final temperature.
Calculate the cell potential, , for this galvanic cell and ΔG for the cell reaction at these conditions.
A chemical firm was hired to monitor a nearby lake for possible mercury contamination. Several samples were taken at different locations around the lake, including water samples.
what simple test would you use to identify the possible presence of HCl (aq)? what result do you expect if the solution is HCl (aq)?
Butyric acid (a monoprotic acid) is responsible for the foul smell of rancid butter. the pKa of butyric acid is 4.84. calculate the pH of a 0.05M sloution of sodium butyrate
What are the concentrations of HSO4-, SO42-, and H+ in a 0.255 M KHSO4 solution? (Hint: H2SO4 is a strong acid; Ka for HSO4- = 1.3 10-2.)
Protein Quantification why is it more useful to plot absorbance vs. weight units(mg/ml) instead of absorbance vs. molar concentration?
Write a net ionic equation, including states for teh reaction of Cobalt (II) Chloride and Silver Nitrate 2. Circle the species in which nitrogen has the highest oxidation number
Calculate the pH of a buffer that contains 0.270 M hydrofluoric acid (HF) and 0.180 M cesium fluoride (CsF). The Ka of hydrofluoric acid is 6.8 x 10^-4.
mixture of the same bromoalkanes, and they both undergo hydroboration/oxidation to give a mixture of the same alcohols. Determine What is the structure of B?
A white precipitate formed when the barium hydroxide solution was mixed with the sulphuric acid. *Mass of filter paper=0.96g *Mass of filter paper and precipitate=5.25g
0.75 g of hydrogen chloride (HCl) is dissolved in water to make 7.0 L of solution. What is the pH of the resulting hydrochloric acid solution.
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