Question

中和100g36.5%的浓盐酸,需要40%的氢氧化钠溶液多少克?

Answer 1

HCl + NaOH =NaCl+H2O

36.5 40

100×36.5% 40%x

x=100×36.5% ×40/(36.5×40%)

x=100 g

需要40%的氢氧化钠100 g