What mass of beryllium metal is produced when molten BeF2 is electrolyzed by a current of...
What mass of beryllium metal is produced when molten BeF2 is electrolyzed by a current of 7.01 A for 16.2 h? Submit Answer Incorrect. Tries 2/45 Previous Tries
What mass of magnesium metal is produced when molten MgF2 is electrolyzed by a current of 6.41 A for 11.9 h?
What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 23 A?! Express your answer using two significant figures. 140 AEDROO? Submit Request Answer
What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 26 A? Express your answer using two significant figures.
When a sample of molten sodium chloride is electrolyzed for a given length of time, how do the number of moles of sodium metal and chlorine gas produced compare? a.) There are four times as many moles of sodium metal as moles of chlorine gas b.) There are three times as many moles of sodium metal as moles of chlorine gas. c.) There are twice as many moles of sodium metal as moles of chlorine gas. d.) There are four...
14. Molten AlCl3 is electrolyzed for 5.0 hours with a current of 0.40 amperes. Metallic aluminum is produced at one electrode and chlorine gas, Cl2, is produced at the other. How many liters of Cl2 measured at STP are produced when the electrode efficiency is only 65%? (a) 0.98 L (b) 0.63 L (C) 0.84 L (d) 0.55 L (e) 1.02 L
If an aqueous solution of HN03 is electrolyzed for 30.00 min at a steady current of 1.51 A, what volume of H2 (g) at 25.0°C and 0.99 atm will be collected at the cathode? vol H2 (L) Tries 0/45 Submit Answer
If an aqueous solution of HNO3 is electrolyzed for 15.00 min at a steady current of 1.39 A, what volume of H2 (g) at 25.0°C and 1.05 atm will be collected at the cathode? vol H2 (L) = 18.8 The reaction is: 2 H+ (aq) + 2e → H2 (g) Submit Answer Incorrect. Tries 4/45 Previous Tries
Elemental calcium is produced by the electrolysis of molten CaCl2. A) What mass of calcium can be produced by this process if a current of 6600 A is applied for 50 h? Assume that the electrolytic cell is 66 % efficient. Express your answer using two significant figures. *incorrect answer = 8.1 x 10^8 g; 8.6 x 10^8 g B) What is the minimum voltage needed to cause the electrolysis? Express your answer using three significant figures.
What mass of gold is produced when 7.20 A of current are passed through a gold solution for 37.0 min ? Express your answer with the appropriate units. t Gold Electroplating 6 of 6 Constants| Periodic Table Part A Metal plating is done by passing current through a metal solution. For example, an item can become gold plated by attaching the item to a power source and submerging it into a Au+ solution. The item itself serves as the cathode,...