The number of moles needed to make the required solution is 1.25 × 10⁻³ moles
Stoichiometry
From the question, we are to determine the number of moles that are needed to make a 1.25L of a 0.100 M solution.
Using the formula,
Number of moles = Concentration × Volume
From the given information,
Concentration = 0.100 M
Volume = 1.25 L
Then,
Number of moles = 0.100 × 1.25
Number of moles = 1.25 × 10⁻³ moles
Hence, the number of moles needed to make the required solution is 1.25 × 10⁻³ moles
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