(a) How many significant figures are there in 1.00 × 106? (b) One mo

1.	(a) How many significant figures are there in 1.00 × 106? (b) One mole of sugar contains ……. oxygen atoms. (c) Give an example of molecule in which the empirical formula is CH2O and the ratio of molecular formula weight and empirical formula weight is 6.
Answer» (a) 3 (b) One mole of sugar C₁₂H₂₂O₁₁ contains 11 × 6.023 × 10²³ oxygen atoms. = 66.253 × 10²³ = 6.6253 × 10²³ atoms of oxygen (c) C₆H₁₂O₆.

(a) How many significant figures are there in 1.00 × 106? (b) One mole of sugar contains ……. oxygen atoms. (c) Give an example of molecule in which the empirical formula is CH2O and the ratio of molecular formula weight and empirical formula weight is 6.

Answer»

(a) 3

(b) One mole of sugar C₁₂H₂₂O₁₁ contains 11 × 6.023 × 10²³ oxygen atoms. = 66.253 × 10²³ = 6.6253 × 10²³ atoms of oxygen