标定HC的浓度,称取基准物质硼砂0.386g,用去HCl溶液19.30ml求溶浓的浓度(?

2025-04-06 04:21:57
推荐回答(1个)
回答1:

硼砂的摩尔质量是381g/mol

盐酸的浓度C=0.386÷381÷(19.39÷1000)= 0.05235mol/L