Chemistry
Answer
(a) Molecular formula is C6H6
∴ Ratio of C and H is 6 : 6
Simple ratio is 1 : 1
Hence, empirical formula = CH
(b) Molecular formula is C6H18O3
∴ Ratio of C, H and O is 6 : 18 : 3
Simple ratio is 2 : 6 : 1
Hence, empirical formula = C2H6O
(c) Molecular formula is C2H2
∴ Ratio of C and H is 2 : 2
Simple ratio is 1 : 1
Hence, empirical formula = CH
(d) Molecular formula is CH3COOH i.e. C2H4O2
∴ Ratio of C, H and O is 2 : 4 : 2
Simple ratio is 1 : 2 : 1
Hence, empirical formula = CH2O
Related Questions
Give three kinds of information conveyed by the formula H2O.
Explain the terms empirical formula and molecular formula.
Find the percentage of water of crystallisation in CuSO4.5H2O. (At. Mass Cu = 64, H = 1, O = 16, S = 32)
Calculate the percentage of phosphorus in
(a) Calcium hydrogen phosphate Ca(H2PO4)2
(b) Calcium phosphate Ca3(PO4)2