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For the reaction: Ag(s) + SCN-1 ? AgSCN(s) + e- AgSCN is deposited on a pure Ag electrode. If the Ag electrode weighed 12.463 g initially, by how much did it increase in weight after the electrolysis of 75.0 mL of 0.0238 M KSCN? Please show ALL work. if work is not shown, i will not rate lifesaver
when 10cm3 of a gaseous hydrocarbon cahb was exploded with an excess of oxygen a contraction of 35cm3 occured all
Calculate the work, w, and energy change, ?Urxn, when 20.51 g of Cu2O(s) is oxidized at a constant pressure of 1.00 bar and a constant temperature of 25°C.
Calculate the pH after the following amounts of NaOH are added. A) 0mL NaOH added( before the titration started)
Arrange the following elements from greatest to least tendency to accept an electron. Rank from greatest to least tendency to accept an electron. To rank items as equivalent, overlap them.
Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25.
As per the Haber Process(N2(g)+ 3 H2(g)= 2 NH3(g) ) ,what mass of nitrogen should you see in the reaction If you must produce 700g of ammonia? Percent yield of this reaction = 70%
In some industrial processes, sulfite is added to remove dissolved O2 to prevent corrosion of pipes. Write the balanced overall chemical reaction for reduction of dissolved O2 by sulfite (SO32-).
Calculate the pressure exerted in the closed end of an apparatus similar to that depicted in Figure 1 if the atmospheric pressure is 720.0 torr and the height of the water column is 22.3cm.
Practice entering numbers in scientific notation by entering the diameter of a hydrogen atom in its ground state
Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.(a) 0.0214 mol of sodium phosphate in 10.5 mL of solutionchemical concentration Mcation concentration Manion concentration
Vitamin C (L-ascorbic acid; MW = 176.0 g/mol) is a weak acid (pKa = 4.863). Suppose a 500.0 mg tablet is dissolved in water and titrated with 0.100 M NaOH. How many mL of NaOH are required to reach the equivalence point?
calculate the ph of a solution that is made by combining 125 ml of 0.050 M hydrofluoric acid with 50 mL of 0.10 M sodium fluoride
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