Question

calculate the total number of atoms in0.5 mole of K2 cr2 07?​

Answer 1

Answer:

No. Of moles = 0.5; Let the number of atoms be “x”

Formula : No. of moles = No. of atoms of K₂Cr₂O₇/ Avagadro’s constant

0.5 = x/6.022*10²³

x = 6.022*10²³ * 0.5

x = 3.011 *10²³

Therefore, the number of K₂Cr₂O₇ is 3.011 *10²³.