# Ex 13.3, 4 (h) - Chapter 13 Class 7 Exponents and Powers

Last updated at Sept. 7, 2021 by Teachoo

Last updated at Sept. 7, 2021 by Teachoo

Transcript

Ex 13.3, 4 Express the number appearing in the following statements in standard form. (h) 60,230,000,000,000,000,000,000 molecules are contained in a drop of water weighing 1.8 gm 60,230,000,000,000,000,000,000 = 6023 × 〖10〗^19 = (6.023 × 103) × 〖10〗^19 = 6.023 × 〖10〗^3 × 〖10〗^19 = 6.023 × 〖10〗^(3 + 19) = 6.023 × 〖10〗^22 Answer is 6.023 × 〖𝟏𝟎〗^𝟐𝟐 molecules (Using am × an = am + n)

Ex 13.3

Ex 13.3, 1
Important

Ex 13.3, 2 (a)

Ex 13.3, 2 (b)

Ex 13.3, 2 (c)

Ex 13.3, 2 (d)

Ex 13.3, 3 (i) Important

Ex 13.3, 3 (ii)

Ex 13.3, 3 (iii)

Ex 13.3, 3 (iv)

Ex 13.3, 3 (v)

Ex 13.3, 3 (vi)

Ex 13.3, 4 (a)

Ex 13.3, 4 (b)

Ex 13.3, 4 (c)

Ex 13.3, 4 (d)

Ex 13.3, 4 (e)

Ex 13.3, 4 (f)

Ex 13.3, 4 (g)

Ex 13.3, 4 (h) You are here

Ex 13.3, 4 (i)

Ex 13.3, 4 (j)

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