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Sagot :
Answer:
There are 0.0753 moles of KBr.
Explanation:
The molarity of the solution tells us that there are 1.50 moles of KBr in 1000mL of solution.
But we only have 50.2mL of solution, so with a mathematical rule of three we can calculate the amount of moles in 50.2mL:
[tex]\begin{gathered} 1000mL-1.50moles \\ 50.2mL-x=\frac{50.2mL*1.50moles}{1000mL} \\ x=0.0753moles \end{gathered}[/tex]So, there are 0.0753 moles of KBr.
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