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A 2.06-g sample of zinc was placed into 146 mL of 3.88 M HCl and the hydrogen generated was collected over water at 24 oC. Atmospheric pressure was 764 mm Hg. What was the total volume of hydrogen collected?
The retina of a human eye can detect light when radiant energy incident on it is at least 4.0 x 10^-17 j. For light of 600 nm wavelength, how many photons does this correspond to
A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 12.00 mL sample taken from car battery. About 50 mL of water is added to the sample, and then it is titrated with 48.62 mL of a standard 0.6403 M NaOH solution
Calculate the volume of water added to 0.410 L of 0.0340 M sodium hydroxide to obtain a 0.0110 M solution (assume the volumes are additive at these low concentrations).
Copper Metal was deposited at the cathode of an electrolytic cell from a solution of Cu(NO3)2. The initial mass of the cathode was 16.4831 g and the final mass was 16.7569 g after 10.0 minutes using a current of 1.44 amperes.
Calculate the following values for a 0.0150 M solution of NaH2A. and Calculate the following values for a 0.0150 M solution of Na2HA.
How Many minutes will it take to plate out 4.56 g of Ni metal from a solution of Ni^+2 using current of 45.5 amps in an electrolytic cell
Which enzymes of the glycolysis pathway catalyze irreversible reactions
What is the density of lead if a rectangular bar measuring 0.500 in height, 1.55 in width, and 25.00 in length has a mass of 220.9g.
how to calculate chemicals ions and determain the calculations once it becomes a compound chemical
For each of the following equilibria, use Le Chatelier's principle to predict the direction of reaction when the volume is increased.
Calculate the pH of a buffer solution that contains 0.25 M benzoic acid (C6H5COOH) and 0.15 M sodium benzoate (C6H5COONa). Ka= 6.5 x 10^-5 for benzoic acid. Please show your work for how you got this.
Which one is pure of the following; Bronze and brass, Sugar, carbon dioxide and water, Soda water and brass, Gasoline
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