Question

Which among the following contains maximum number of atoms (atomic weight of ca=40, s=32 options are a.50 g if caco3 ,b.49 g of h2so4,. c.16 g of ch4, d.18 g of h2o

Answer 1

Explanation:

no .of moles of CaCO3 = 0.5

no. of moles of atoms = 0.5 ×4

= 2

no. of moles of h2s04 = 0.5

no. of moles of atoms = 0.5 × 7

= 3.5

no. of moles of ch4 = 1 mole

no.of moles of atoms = 1 × 5 = 5

no of moles of h2o = 1 mol

no. of moles of atoms = 1 × 3 moles

so, 16g CH4 xontains maximum atoms