论文部分内容阅读
上表横列第一行为需要求得的乙醇濃度,豎列第一行为原有乙醇的濃度,中間,横豎兩行交叉点的数字为应加入的水量(毫升),再将此数量的水加到原有壹仟毫升的乙醇中去,便得所需的乙醇濃度。例如:原有乙醇濃度为80°,现須冲淡为50°
The first row of the above table requires the concentration of ethanol to be obtained. The first column of the vertical column is the concentration of the original ethanol. The middle and the intersection of the two rows are the amount of water (ml) that should be added and the amount of water plus To the original one thousand milliliters of ethanol to get the required ethanol concentration. For example: the original ethanol concentration of 80 °, now diluted to 50 °