Answer:

Step-by-step explanation:
Hello,
In this case, the molarity, which is a unit of concentration of liquid dissolutions, is defined as shown below:

Whereas the volume of the solvent must be in liters, therefore, the 750-mL solution is also equivalent to 0.750-L solution, hence, the molarity turns out:

Whereas the molar units (M) account for mole over L (mol/L).
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