Question

Calculate the moles of oxygen present in 2 Na

Answer 1

Answer:

As per he given chemical formula- Na2CO3.10H2O one mole of the chemical compound contains 13 moles of oxygen atoms.

Hence number of moles of oxygen atoms in one mole of Na2CO3.10H2O = 13

Number of moles of oxygen atoms in 0.2 moles of Na2CO3.10H2O = 13 x 0.2 =2.6

Now, one mole of a substance contains 6.022 x 1023 particles of the substance.