Question

calcule a massa molar de 20%NaOH.H2O​

Answer 1

MM Na= 23 (arredondado)

MM OH= 17

MM H2O= 18

TOTAL =57g

57g ------------- 100%

x (g)------------- 20%

100x = 20 . 57

100x = 1140

x = 1140÷100

x = 11,4