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Home Q & A Board Biology-Related Homework Help General Biology
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mspage1407 mspage1407
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5 years ago
Describe how to prepare 1 L of an
0.85%  NaCl solution. If the solution is to be
used to culture live cells, is it important to
include a buffer in the solution? Explain.
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wrote...
#1
5 years ago
I'm using the formula:

\(C=\frac{n}{V}\)

I'm assuming 0.85% is grams / L.

\(0.0085=\frac{n\ mol}{1\ L}\times \frac{58.4\ g}{1\ mol}\)

According to this, we use the molar mass of NaCl which is 58.4 g.

My opinion whether you need a buffer is no because the osmolarity here is a close approximation to the osmolarity of NaCl in blood.
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