Determine the number of moles and the mass of copper(II) carbonate needed to produce 1.500 kg of copper(II) oxide.        CuCO3 à CuO + CO2  Determine the number of moles and the mass of magnesium carbonate, MgCO3, required to produce 283 g of carbon dioxide. (MgO is the other product.)   H2 is produced by the reaction of 118.5 mL of a 0.8775-M solution of H3PO4 according to the following equation:        2Cr + 2H3PO4 à  3H2 + 2CrPO4.

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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.