Answer:
the number of moles is 0.279
Step-by-step explanation:
The calculation of the number of moles of calcium nitrate, is given below;
As We know that
Number of moles = mass of substance ÷ molecular weight
where
Mass of substance is 45.8g
And, the molecular weight is 164.088
so,
= 45.8 g ÷ 164.088
= 0.279moles
Thus , the number of moles is 0.279
We simply used the above formula so that the accurate value could arrive