what is the gram equivalent weight of borax?

Question

8.5 g of borax was disolved in 500ml of water to make approximately 0.1N solution.what is the factor and normality of borax.

even if you don't know the question, could you give me an example?

Answer 1

The solution centers in the definition of a 1N. solution. A 1N solution has one gram equivalent weight in 1 liter of solution. (1N = 1Eq/L) In this example we have 8.5g that make 0.5 L of a 0.1N solution. Another way of looking at it is that the 8.5g represents 0.05 equivalents (0.1Eq/L x0.5L). Then divide the number of grams by the number of equivalents to get the grams equivalent weight.
8.5g/0.05Eq = 170g/Eq