The solubilities of three salts in water are shown in the graph. 1000 Pb(NO,), 900 For each salt, determine how much will remain undissolved if 800 500 g is mixed into a liter of pure water at 40 °C. One K.Cr.O, 700 significant figure is sufficient in each answer. 600 500 KCI 400 Pb(NO,),: g 300 200 100 KCI: g 10 20 30 40 50 60 70 80 90 100 Temperature (°C) K,Cr,0;: g Solubility (g/L)

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.