从装满1000克浓度为50%的酒精瓶中倒出200克酒精,再倒入蒸馏水将瓶加满。这样反复三次后,瓶中的酒精浓度是多少?( )A. 22. 5% B. 24...

作者: tihaiku 人气: - 评论: 0
问题 从装满1000克浓度为50%的酒精瓶中倒出200克酒精,再倒入蒸馏水将瓶加满。这样反复三次后,瓶中的酒精浓度是多少?( )
选项 A. 22. 5% B. 24.4% C. 25. 6% D. 27. 5%
答案 C
解析

相关内容:1000克,浓度,酒精,200克,蒸馏水,加满

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