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sxyzt

铁杆木虫 (职业作家)

[求助] 求10 mg/L Na2HPO4溶液的pH 已有1人参与

求计算下10 mg/L Na2HPO4溶液的pH。    Na2HPO4(分子量141.96)
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klicking

至尊木虫 (著名写手)

【答案】应助回帖

感谢参与,应助指数 +1
直接用pH计就可以啦,如果要通过计算来求,那得计算摩尔浓度后再照公式计算,稍嫌麻烦啦,而且也只是理论值,和用水各方面都有关系,理论值与实际值还是会有细微差别的,建议直接测定。
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2楼2015-10-29 22:52:59
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