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Sagot :
About 0.25 liters of 6.0 m solutions of HCl should be added to create 2.0 liters of a 0.75 m HCl solution.
Lowering a solute's concentration in a solution is the process of dilution. It entails adding significantly additional water or solvent to the solution. When more solvent is added to a solution without extra solute, the solution gets diluted.
The dilution formula is M₁V₁=M₂V₂. Here, M₁ is the initial molarity, M₂ is the final molarity, V₁ is the initial volume, and V₂ is the final volume.
Given, M₁ is 6.0 M, M₂ is 0.75 M, and V₂ is 2.0 L. We have to find V₁.
[tex]\begin{aligned}V_1&=\frac{M_2V_2}{M_1}\\&=\frac{0.75\times2}{6}\\&=\mathrm{0.25\; L}\end{aligned}[/tex]
The answer is 0.25 L.
To know more about dilution formula:
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