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help please 5. How many grams of nickel would be electroplated by passing a constant current...
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5. How many grams of nickel would be electroplated by passing a constant current of 7.2 A through solution of NISO, for 90.0 min? (Apts) Am What current is needed to deposit son of chromium metal from a solution of a period of 1.00W (4) 7. Considera galvanic cell which has an Iron electrode submerged in a Fe(NO), meln. and a Gold cliectrode submerged in a ANO son. .) Find the care of this cell under standard condition:...
5. How many grams of nickel would be electroplated by passing a constant current of 7.2 A through a solution of Niso, for 900 min? (pls) Απι: What current is needed to deposit 6.500 g of chromium metal from a solution of Cr in a period of 1.00 hr? Ans 7. Considera galvanic cell which has an Iron electrode submerged in a Fe(NO.) sonand a Gold electrode submerged in a Au(NOssola. .) Find the core of this cell under standard...
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1. How many faradays are transferred in an electrolytic cell when a current of 2.0 A flows for 12 hours? (1 faraday = 96,500 C) 2. A metal object is to be gold-plated by an electrolytic procedure using aqueous AuCl3 electrolyte. How much gold may be deposited in 3.0 min by a constant current of 10.0 A? 3. What mass of nickel may be electroplated by passing a constant current of 7.2...
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DOCX - 151 KB your final answer!) Show work: 1. (3pts.) Complete and balance the nuclear equation n+ U Br +31+ 2. The equilibrium constant for the dissociation of Ag.CO,($) + 2 Ag+CO, 'Is K.-8.1 * 10" at 25°C. *) Calculate AG for the reaction when Ag 1 = 10 X 10M and CO, ' -1010 M (4pts) Ans: b) (pt) is the reaction spontaneous or nonspontaneous at...
2.
6.4 KB) ELECTROLYSIS PROBLEMS 1. How many faradays are transferred in an electrolytic cell when a current of 2.0 A flows for 12 hours? (1 faraday - 96,500 C) 2. A metal object is to be gold-plated by an electrolytic procedure using aqueous AuCl; electrolyte. How much gold may be deposited in 30 min by a constant current of 10.0 A? 3. What mass of nickel may be electropiated by passing a constant current of 7.2 A through a...
2. The equilibrium constant for the dissociation of Ag,CO, (s) + 2 Ag+ + CO, is Kp -8.1 10-12 at 25°C. a) Calculate AG for the reaction when [Ag'] = 1.0 x 10 2M and CO, +1 = 1.0 x 10- M. (4pts) Ans: b) (Ipt) Is the reaction spontaneous or nonspontaneous at these concentrations? Ans: 3. (4pts) Nitrosyl chloride (NOCI) decomposes at elevated temperatures according to the equation below; 2NOCI(g) 2NO(g) + Cl2(g) Calculate K, for this reaction at...
12. Zinc is electroplated from a ZnSO4 solution. How many grams of zinc will be deposited if a 1.2A current runs for 35 minutes?
A. How many grams of nickel metal will be deposited from a solution that contains Ni2+ions if a current of 1.21 A is applied for 48.0minutes. B. How many grams of nickel metal will be deposited from a solution that contains Ni2+ions if a current of 0.664 A is applied for 38.0minutes. ______Grams C. How many grams of cobalt metal will be deposited from a solution that contains Co2+ions if a current of 0.809 A is applied for 67.8minutes. ___________grams
10) How many grams of Cr metal can be electroplated from a Cr, 0,2. solution in 35 minutes at 4.5 amps? 52 goool
Chromium often is electroplated on other metals and even plastics to produce a shiny metallic appearance. How many grams of chromium would plate out from a solution of Cr(NO3)3 when 10.0 amps of current are passed through the electrolytic cell for 8.45 hours? Answer: Check