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a 68 ml aliquot of a 1.4M solution is diluted to a total volume of 288 ml a 144 ml portion of that solution is diluted by adding 173 ml of water what is the final concentration assume the volumes are dditive

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boffeemadrid

Answer:

[tex]0.1501\ \text{M}[/tex]

Explanation:

[tex]68\times 10^{-3}\times 1.4=0.0952\ \text{mol}[/tex]

Concentration in solution

[tex]\dfrac{95.2}{288}=0.3305\ \text{M}[/tex]

After dilution

[tex]144\times 0.3305=47.592\ \text{mmol}[/tex]

Total volume [tex]=144+173=317\ \text{mL}[/tex]

Final concentration [tex]=\dfrac{47.592}{317}=0.1501\ \text{M}[/tex]

The final concentration is [tex]0.1501\ \text{M}[/tex]

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