0.15mol的氢离子被7:5:3的一元碱中和
可知三者的物质的量分别是0.07mol,0.05mol,0.03mol;
设它们的摩尔质量分别是3m,5m,7m,
得3m*0.07+5m*0.05+7m*0.03=5.36,
解得m=8;
故它们的摩尔质量分别是24,40,56
对应LiOH,NaOH,KOH
0.15mol的氢离子被7:5:3的一元碱中和
可知三者的物质的量分别是0.07mol,0.05mol,0.03mol;
设它们的摩尔质量分别是3m,5m,7m,
得3m*0.07+5m*0.05+7m*0.03=5.36,
解得m=8;
故它们的摩尔质量分别是24,40,56
对应LiOH,NaOH,KOH