Question

find the amount of urea which is to be dissolved in water to get 500g of 10%w/w aqueous solution?​

Answer 1

Answer:

Explanation:

weight percentage = weight of the urea

                                     ---------------------------

                                      weight of urea +

                                       water (100)

         = x/x+500 * 100 = 10

           x/x + 500 =1/10

           10x = x +500

            9x = 500

               x = 55.55555555555555556