A10% glucose solution is placed in a dialysis tubing bag. the dialysis tubing bag is placed in a beaker that contains a 5% glucose solution. where is the highest concentration of water found?

The highest concentration of water would be found in the 5% solution. The concentration given above is percent of glucose, so the solution contain 5% of glucose and 95% of water. Comparing it to 10% of glucose solution which will have 10% glucose and 90% water, clearly, it is the 5% solution that has the highest amount of water in the solution. Percentage by a certain unit is the amount of that unit of a component in a mixture per 100 units of the total mixture. 

Is there a diagram/picture you can provide? it seems this question goes along with a

Since there is the same amount of agn03 in both silver chloride and silver nitrate they produce the same amount of moles. therefore silver chloride produces the same amount of silver nitrate, so your answer is 15.0 moles of silver nitrate. i hope this !