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Equal molar quantities of two gases, O2 and H2O, are confined in a closed vessel at constant temperature, Which gas, if any, has the greater partial pressure?
What mass of copper would you expect to be deposited from a copper (II) sulphate solution using a current
Above what Fe2 concentration will Fe(OH)2 precipitate from a buffer solution that has a pH of 9.39? The Ksp of Fe(OH)2 is 4.87×10-17
What is the pH of a solution that contains three parts of acetic acid and one part sodium acetate?
A general chemistry student found a chunk of metal in the basement of a friend's house. To figure out what it was, he used the ideas just developed in class about density.
Determine the number of grams H2 formed when 250.0 mL of 0.743 M HCl solution reacts with 3.41 x 1023 atoms of Fe according to the following reaction. 2 HCl(aq) + Fe(s) ? H2(g) + FeCl2(aq)
The X rays used for both scientific and medical applications are usually produced by making high-velocity electrons collide with metallic targets. For electrnos accelerated in a field of 75,000 volts. compute the wavelength of the X rays produced
C3H8 + 5O2 reacts to yield 3CO2 + 4H2O +488 kJ What is the heat released if 2.5 moles of C3H8 reacts completely with oxygen?
Write balanced half-cell reactions for CH2O oxidation and SO4 reduction to HS and then add them together to get the balanced overall redox reaction.
What is the molar solubility of SrSO4 in pure water at 25ºC?
Answer the following questions, include an explanation, balanced chemical equations where appropriate. Calculate the concentration of NaOH solution. Include calculation for each trial and average.
Enough of a monoprotic acid is dissolved in water to produce a 0.0198 M solution. The pH of the resulting solution is 6.37. Calculate the Ka for the acid.
The rate constant of the reaction: a. Depends on the concentration of reactants b. Describes the rate of the reaction when it reaches equilibrium c. Is a thermodynamic constant that is always true for a given reaction d.
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