What is the number of moles of O-atoms in 126 amu of `HNO_3` ?

Number of atoms of He in 100 amu of He is :

What is number of atoms of molecules in 112 L of O_(3)(g) at STP ? .

The molar mass of O_(2) is 32 g per mole. What is the number of moles in 16 g of oxygen?

The number of atoms in 10.6 moles of Fe are?

Calculate the number of oxygen atoms in 0.20 mole of Na_(2)CO_(3).10H_(2)O .

A sample of ammonium phosphate, (NH_4)_3PO_4, contains 6 moles of hydrogen atoms. The number of moles of oxygen atoms in the sample is :

Find number of O-atoms in 1 moles O_(2)

A sample of ammonium phosphate (NH_(4))_(3) PO_(4) contains 3.18 moles of hyrogen atoms . The number of moles of oxygen atoms in the sample is

A sample of ammonium phosphate (NH_(4))_(3) PO_(4) contains 3.18 moles of hyrogen atoms . The number of moles of oxygen atoms in the sample is

A sample of ammonium phosphate (NH_(4))_(3) PO_(4) contains 3.18 moles of hyrogen atoms . The number of moles of oxygen atoms in the sample is