Answer to Question #171465 in General Chemistry for Jordan

Question #171465

How many millimoles of NaOH contain 5.63 x 10^22 formula units of NaOH


1
Expert's answer
2021-03-15T09:29:35-0400

1 mole of NaOH would have "6.02 \u00d710^{23}" (avogadro's constant)


Molar mass of NaOH = 40


Hence


"5.63\u00d710^{22}"  formula units of NaOH will have mass:

"(\\frac{40}{6.02\u00d710^{23}} ) 5.63 \u00d710^{22} = 3.74g"


In millimoles = "\\frac{3.74}{1000}= 0.00374 millimoles"


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