2NaOH +H2SO4 =Na2SO4 +H2O80 14256*10% X列式解得X=9.94g溶质的质量分数=9.94/80.5=12.3%
10%*56/2*56 = x/98;x=4.9gH2SO4=4.9/24.5=20%不懂的欢迎追问,如有帮助请采纳,谢谢!