Answer:The concentration of the salt solution is 9 g/L, which means that for every liter of water, there are 9 grams of salt dissolved in it. To determine how much salt should be added to 350 mL of water, we need to calculate how much salt is needed to make a solution with the same concentration.
We can start by calculating how many grams of salt are in one milliliter of the salt solution:
9 g/L = 9/1000 g/mL
This means that for every milliliter of the salt solution, there are 0.009 grams of salt dissolved in it.
To determine how much salt should be added to 350 mL of water, we can use the following formula:
Amount of salt = Concentration x Volume
where the concentration is in grams per milliliter, and the volume is in milliliters.
Substituting the values we have:
Amount of salt = 0.009 g/mL x 350 mL
Amount of salt = 3.15 g
Therefore, 3.15 g of salt should be added to 350 mL of water to create a salt solution with the same concentration as the original solution.
Explanation: