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.
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.
what is the percent yield of SiF4 using the mixture in the previous question if 8.76g of SiF4 is obtained from the reaction
To calculate the molarity of NaI in the solution, you would need to know the percent by mass of NaI. This information is not provided in the question statement, so it seems that you have made an assumption in your calculations.
The percent by mass of NaI is not irrelevant in this case. It is a crucial factor in determining the molarity of the solution. Without this information, it is not possible to accurately determine the molarity.
To calculate the molarity, you would typically need to know the mass of the solute (NaI) and the volume of the solution. From the given information, only the density of the solution is provided.
Please double-check the question and confirm the provided information. If the percent by mass of NaI is indeed missing, it would not be possible to calculate the molarity of the solution accurately.