What mass of cobalt III hydroxide, Co(OH)3 is needed to make 1.2 liters of a 0.21 M cobalt III hydroxide solution?                                                                  and  Calculate the molality of 15.0 grams of KBr dissolved in 750.0 mL pure water.

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A: Correct answer -->  Chemical symbol of manganese

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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.