# How many grams of water need to be added to 0.200 g of NaCl(s) to make a solution that is 500 ppm of NaCl? Ppm= mass of Solute x 10 A) 400.00 mass solution B) 399.80 C) 499.80 D) 0.00040 E) 100.00. The Importance of Calculating the Amount of Water Necessary to Make a Solution of a Solute

How Important is it to Calculate the Water Required for Solving a Solute?
You cannot overestimate the importance of correctly calculating how much water is required to dissolve a solvent. It is essential to know how much water it takes to dissolve a substance in chemistry or biology. (Coulson and al. 2015). If one wants to prepare a 500 ppm solution sodium chloride (NaCl), then one has to calculate how much water is required to get the desired concentration. The mass of the solution must be determined before one can calculate how much water will need to prepare a 500 ppm NaCl solution. This example shows that the solute has a mass of 0.200 g. (Cooper, et al. (2018) After determining the mass of the solut, it is possible to calculate how much water will be needed for the solution. The mass of the solution is then multiplied with 10, giving a value of 2. (Coulson and al., 2015). So, to prepare a 500ppm NaCl solution it takes 2 g. 0.200g is 1.800g.

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