The number of moles of `BaCO_(3)` which contains 1.5 moles of oxygen atoms is

How many moles of magnesium phosphate Mg_3 (PO_4)_2 will contain 0.25 mole of oxygen atoms ?

From the equation for burning of hydrogen and oxygen 2H_(2)+O_(2)to2H_(2)O (Steam) Write down the number of mole (or moles) of steam obtained from 0.5 moles of oxygen.

Air contains 21% of oxygen by volume. The number of moles of O_(2) present in 5L of air at STP conditions

In three moles of ethane (C_(2)H_(6)) , calculate the following: (i) Number of moles of carbon atoms. (ii) Number of moles of hydrogen atoms. (iii) Number of molecules of ethane.

The number of moles of oxygen in 1 L of air containing 21% oxygen by volume , under standard conditions , is

The number of moles of oxygen in 1 L of air containing 21% oxygen by volume , under standard conditions , is

The number of atoms in 5.4mole of Na are?

The number of atoms in 4.5mole of Na are?

The number of atoms in 6.5mole of Na are?

The number of atoms in 2.5mole of Na are?