Elements bond in fixed ratios and so can be represented by a chemical formula. For example, sodium chloride has the same number of sodium ions and chloride ions, so its formula is NaCl, whereas ...

Solved Law of Mass Action Examples 1. Calculate Kc for 2NO 2 ⇌ N 2 O 4.Consider [N 2 O 4] = 0.0417 mol L-1 and [NO 2] = 0.0165 mol L-1.. Solution. The Equilibrium constant for this reaction can ...