A teacher prepares a solution of aluminum chloride by dissolving 1.00 mole of solid into 500 mL of solution. Which of the following statements is correct?
A. The concentration of the aluminum ions is equal to the concentration of chloride ions
B. The concentration of aluminum chloride solution is equal to the concentration of aluminum ions
C. The concentrations of aluminum chloride solution, aluminum ions and chloride ions are all the same
D. The concentration of aluminum chloride solution is equal to the concentration of chloride ions
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