Asked by keely

A solution contains 4.44% by mass of NaI in water. Calculate the molarity of the NaI, if the density of the solution is 1.2711 g mL-1.

i got the answer to be 8.48 M... the percent mass is irrelevant information, right? i figured out the answer just by the given density alone.
Answered by drwls
Knowing the density alone cannot tell you the molarity of the solution unless you have a lookup table of density vs. molarity, based upon previous measurements.

The % by mass of NaI is not irrelevant.
Answered by Ernesto
what is the percent yield of SiF4 using the mixture in the previous question if 8.76g of SiF4 is obtained from the reaction
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