氧化铜和木炭的混合物在加热条件下恰好完全反应,固体物质减少了22.0g,原混合物中氧化铜和木炭粉各多少克?
急
人气:375 ℃ 时间:2019-08-19 21:39:51
解答
固体物质减少了22.0g即生成22.0g二氧化碳
C+2CuO=高温=2Cu+CO2
12 160 44
x y 22g
12/x=160/y=44/22g
x=6g
y=80g
原混合物中氧化铜80g 木炭粉6g
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