Water is usually softened by using an ion exchange resin to replace each Ca2+ (and Mg2+) ion with 2Na+ ions. What must be true of the Na+ salt of soap?

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Q: 13) How many oxygen atoms are contained in 2.74 g of aluminum sulfate? A) 12 B) 60 x 1023 13)

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Q: ЕНО N N. N р-аз РАЗРА N. OH

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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.