请教一个AP chemistry的问题
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请教一个AP chemistry的问题
a solution is prepared by mixing 90.0mL of 0.050 M HCl to 30.0mL of 8.00 M HNO3.water is then added until the final volume is 1.00mL.Calculate [H+] [OH-],and the pH of the solution
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我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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