How many gram of sodium (atomic mass 23 u) is required to prepare one mole of ethane from methyl chloride by Wurtz reaction?

How will you prepare the following from methyl chloride ? Ethane.

How will you prepare the following from methyl chloride ? Toluene.

What is the minimum quantity (in grams) of methyl iodide required for preparing one mole of ethane by Wurtz reaction?

What is the minimum quantity (in grams) of methyl iodide required for preparing one mole of ethane by Wurtz reaction ? (Atomic weight of iodine = 127)

Sodium iodate is treated with calculated amount of sodium bisulphite to prepare one mole of iodine. How many moles of sodium disulphite are required to prepare one mole of iodine form sodium iodate ?

Sodium iodate is treated with calculated amount of sodium bisulphite to prepare one mole of iodine. How many moles of sodium disulphite are required to prepare one mole of iodine form sodium iodate ?

How many gram of sodium hydroxide pellets containing 12% moisture are required to prepare 60 litre of 0.5N solution.

How many moles of KMnO_(4) are required to liberate one gram mole of oxygen from H_(2)O_(2) in acid medium ?

How many moles are 5 grams of calcium ? (Atomic mass of calcium = 40 u ).