Question

Find out number of moles and number of atoms in 490 g of H2SO4

GMM of H2SO4 is 98​

Answer 1

Answer:

No. of moles = weight/gram molecular weight

= 490/98

= 5 moles.

No. of atoms

98 gram contains 6*10²³

So,490gram contains X

X = 490*6*10²³/98

X = 30*10²³.

Answer 2

Answer:GMM of H2SO4=98

Mass of H2SO4=490

No. Moles=490/98=5Mole

No. of Atoms=5 x 7 x 6.022 x 10²³

 =35 x 6.022 x 10²³ Atoms