30.100g稀硫酸恰好與l3g鋅完全反應(yīng).求: (1)生成氫氣的質(zhì)量. 查看更多

 

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(2013?撫順)100g某一定質(zhì)量分?jǐn)?shù)的稀硫酸恰好與13g鋅完全反應(yīng).請計(jì)算:
(1)反應(yīng)產(chǎn)生氫氣的質(zhì)量是
0.4
0.4
g.
(2)稀硫酸中溶質(zhì)的質(zhì)量分?jǐn)?shù).(寫出計(jì)算過程).

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100g某一定質(zhì)量分?jǐn)?shù)的稀硫酸恰好與13g鋅完全反應(yīng).請計(jì)算:

(1)反應(yīng)產(chǎn)生氫氣的質(zhì)量是          g.

(2)稀硫酸中溶質(zhì)的質(zhì)量分?jǐn)?shù).(寫出計(jì)算過程).

 

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100g某一定質(zhì)量分?jǐn)?shù)的稀硫酸恰好與13g鋅完全反應(yīng).請計(jì)算:
(1)反應(yīng)產(chǎn)生氫氣的質(zhì)量是______g.
(2)稀硫酸中溶質(zhì)的質(zhì)量分?jǐn)?shù).(寫出計(jì)算過程).

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100g某一定質(zhì)量分?jǐn)?shù)的稀硫酸恰好與13g鋅完全反應(yīng).請計(jì)算:
(1)反應(yīng)產(chǎn)生氫氣的質(zhì)量是______g.
(2)稀硫酸中溶質(zhì)的質(zhì)量分?jǐn)?shù).(寫出計(jì)算過程).

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100g某一定質(zhì)量分?jǐn)?shù)的稀硫酸恰好與13g鋅完全反應(yīng).請計(jì)算:

(1)反應(yīng)產(chǎn)生氫氣的質(zhì)量是  g.

(2)稀硫酸中溶質(zhì)的質(zhì)量分?jǐn)?shù).(寫出計(jì)算過程).

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