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QUESTION 10
A bottle of vitamin water contains 3500 mg of potassium in 591.5g of H 20 What is the concentration of potassium by mass percent?
085.5%
O 5.92%
O 0.59%
O 16.9%

Respuesta :

sebassandin

Answer:

[tex]\% m/m=0.59\%[/tex]

Explanation:

Hello,

In this case, since the by mass percent is for potassium in this vitamin is:

[tex]\% m/m=\frac{m_K}{m_K+m_W}*100\%[/tex]

Thus, for 3500 mg of potassium that in grams are 3.5, the by mass percent turns out:

[tex]\% m/m=\frac{3.5g}{3.5g+591.5g}*100\%\\\\\% m/m=0.59\%[/tex]

Best regards.

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