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OpenStudy (anonymous):
Hi, can anyone help me with this question: A standardized solution that is 0.0500 M in Na is necessary for a flame photometric determination of the element. How many grams of primary-standard-grade sodium carbonate are necessary to prepare 900.0 mL of this solution?
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OpenStudy (aaronq):
it's just a matter of finding moles, then grams. \(Molarity=\dfrac{n}{L}\) then \(n=\dfrac{mass}{Molar\;mass}\)
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