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How many mL of H2 (g) measured at STP are produced at a platinum cathode in the electrolysis of H2SO4 (aq) by 4.35 A of electric current in 6.00 min? a. 112 b. 16.3 c. 364 d. 182 e. 91.0
a spoon was silver plated electrolytically in a silver nitrate solution. if 0.750 grams of silver was deposited on the
Calculate the equilibrium constant for the dissolution of calcium carbonate at pH=6 in the presence of EDTA as shown below: CaCO3(s) + EDTA^4- (aq) + H+(aq) --> [Ca(EDTA)]2-(aq) + HCO3 (-1 charge)(aq)
On a quantitatively labeled number line, draw where the radial nodes of the 1s, 2s, and 3s hydrogen wavefunctions sit.
Enough of a monoprotic acid is dissolved in water to produce a 0.0189 M solution. The pH of the resulting solution is 6.25. Calculate the Ka for the acid.
Calculate: (a) The partial pressure of each component. (b) The mass fraction of methane. (c) The average molecular weight of the gas mixture. (d) The density of the gas mixture in kg/ m3. write the steps please
Which families of organic compound does butane transform to in hydrogenation reaction? If no reaction would likely to occur, choose "No reaction."
If 69.5 kJ of heat is applied to a 1034 g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
What is the theoretical yield of aspirin if 175 kg of salicylic acid is allowed to react with 118 kg of acetic anhydride?
Find the volume and the intermolecular force present in ammonia at STP in the following reaction and What is the intermolecular force is present in NH3(g).
Calculate the pH during the titration of 20.00 mL of 0.1000 M CH3CH2COOH(aq) with 0.1000 M NaOH(aq) after 20.39 mL of the base have been added. Ka of propanoic acid = 1.3 x 10-5.
Consider the titration of 40.0 mL of 0.050 M of the fully protonated form of tryptophan with 0.10 M KOH. Calculate the pH of the solution at the following points
The nuclide As-76 has a half-life of 26.0 hours. If a sample of As-76 weighs 344 g, what mass of As-76 remains after 538 minutes.
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