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A solution containing a metal cation of charge 3+ is electrolyzed by a current of 5.00 A for 10.0 minutes. What is the identity of the metal if 0.280 grams of the metal is plated out in the electrolysis? Show all calculations. (hint: you have to use literature data of Faraday constant)
If iron is oxidized to Fe2+ by a copper(II) sulfate solution, and 0.289 grams of iron and 21.0 mL of 0.433M copper(II) sulfate react to form as much product as possible.
How many milliliters of a stock solution of 10.0 M HNO_3 would you have to use to prepare 0.320 L of 0.550 M HNO_3?
What volume of 0.1 M KMnO4 would be required to titrate 0.56 g of K2[Cu(C2O4)2] • 2H2O?
A 771 mL gas sample at STP is compressed to a volume of 242 mL, and the temperature is increased to 31?C. What is the new pressure of the gas in Pa
determine the theoretical yield and the percent yield of ethanol if 684 g of sucrose undergoes fermentation and 349 g of ethanol is obtained
Mercury-205 has how many protons, neutrons, electrons, and electrons in the 1st quantum shell and in the compound BCl3 which is the more electronegative element?
NH3(Ammonia ) is widely used in many household cleaners and as a fertilizer. Calculate How much ammonia (in units of mol) is produced when 7.8 mol of H gas react with an excess of N gas.
How many air molecules are in a 10.0x20.0x10.0 ft room? Assume atmospheric pressure of 1.00atm , a room temperature of 20.0C , and ideal behavior.
Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty.
Write a balanced chemical equation for this reaction when Ferrophosphorus reacts with pyrite making iron (ll) sulfide and a compound that is
The atomic weight of a newly discovered element is 98.225 amu. It has two naturally occuring isotopes. One isotope has a mass of 96.780 amu.
A 325-mL sample of solution contains 25.3 g of CaCl2, which is fully dissolved. (a) Calculate the molar concentration of Cl- in this solution. (b) How many grams of Cl- are in 0.100 L of this solution?
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