How many hours does it require to produce 50.0 mL of `O_2` gas measured at STP by electrolysis of water for a period of 3 hrs?

How many moles of methane are required to produce 22 g of CO2 for combustion?

How many moles of electrons are required to Produce 10.0 g of Al from molten Al_2O_3 ?

How many hours does it take to reduce 3 mol of Fe^(3+) to Fe^(2+) with 2.0 A current? (F=96500C)

How many gram of oxygen is required to completely react with 0.200g of hydrogen to yield water .

Beryllium occurs naturally in the form of beryl. The metal is produced from its ore by electrolysis after the ore has been converted to the oxide and then to the chloride.How many grams of Be(s) is deposited form a BeCl_2 solution by a current of 5.0 A that flows for 1.0 h? (Atomic weight:Be=9)

How many molecules of O2 are present in 1L air containing 80% volume of O2 at STP?

How much electricity in terms of faraday is required to produce? 20.0 g of Ca from molten CaCl_2

How much electricity in terms of Faraday is required to produce :20.0 g of Ca from molten CaCl_2 ?

During the eletrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 ampere is

How many grams of silver could be plated out on a serving tray by elelctolysis of a solution containing silver in +1 oxidation state for a period of 8.0 hours at a current of 8.46 amperes? What is the area of the tray if the thickness of the silver plating is 0.0025 cm? density of silver is 10.5 g/cm^3 .