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本文推导了Na_2HPO_4溶液酸度计算公式,计算了Na_2HPO_4浓度不同时,用最简式和准确式计算的相对误差.明确了一些模糊认识.
In this paper, the formula for calculating the acidity of Na_2HPO_4 solution was deduced, and the relative errors calculated by the simplest and exact formulas were calculated when the concentration of Na_2HPO_4 was different.