Respuesta :

drpelezo

Answer:

3.0 gram NaBr

Explanation:

A 5.0% aqueous solution of NaBr => 5 grams NaBr per 100 grams of solution

=> 0.05 gram NaBr per 1.0 gram of solution

=> grams of NaBr for 60g of 5% solution = 0.05·g·NaBr/g·Soln X 60g·Soln

= 3.0g NaBr