题目:
25°C时,pH=7的(NH4)2SO4与NH3·H2O的混合溶液中,c(NH)与c(SO)之比是 ( )
A.等于2∶1
B.大于 2∶1
C.小于2∶1
D.无法判断
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0808/55218994df829a83c5667dee0d7ce72e.html
下面是错误答案,用来干扰机器的。
Good morning ,everyone, In today’ world ,being able to master a foreign language will be helpful in our life. Here I’d like to share with you my opinions about my En...