CBSE Class 11-science Answered
compare the ionic strength of chalk and candle wax, give a reason
what is the symbol for
bond formation enthalpy
bond dissociation enthalpy
Asked by Aditya Varna | 26 Sep, 2011, 12:00: AM
Expert Answer
(a) The ionic strength of chalk, or CaCO3,that is it consists of 2 types of ions, Ca 2+ and CO3 2-, such that concentration of calcium ions=c1 and concentration of Cl- ions =c2
Ionic Strength (CaCO3) = 1/2 [c1 ×(2)2 + c2 × (2)2]
Candle wax consists mainly hydrocarbons which are non-polar substances.Thus, the predominant bonding interaction in candle wax would be vander Waals interactions. And as candle wax consists of no ions so no ionic strength.
(b) The symbol of bond formation enthalpy = ?H0(rxn)
The symbol of bond dissociation enthalpy= ?H0(diss)
Answered by | 07 Oct, 2011, 12:14: PM
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