20克水后,析出4克晶体,溶液为饱和溶液,再蒸发掉5克水,析出5.6-4=1.6克
1.6/5=S/100 S=32g
200gkno3溶液蒸发掉20克水后,析出4克晶体,相同温度下,蒸发掉25克水,析出5.6克晶体,
200gkno3溶液蒸发掉20克水后,析出4克晶体,相同温度下,蒸发掉25克水,析出5.6克晶体,
化学人气：495 ℃时间：2019-10-14 02:50:16
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