15.5g-10.7g=4.8g
10.7g固體物質中含有氯化鉀和二氧化錳.
設生成氯化鉀的質量為x.
2KClO3
MnO2

.


2KCl+3O2↑
149
96
" />

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歡迎您訪問把干燥純凈的氯酸鉀和二氧化錳的混合物15.5g裝入大試管中,加熱!

把干燥純凈的氯酸鉀和二氧化錳的混合物15.5g裝入大試管中,加熱

更新時間:2021-12-16 18:11:29作者:admin2

解:生成氧氣的質量為
15.5g-10.7g=4.8g
10.7g固體物質中含有氯化鉀和二氧化錳.
設生成氯化鉀的質量為x.
2KClO3
MnO2

.


2KCl+3O2↑
149
96
x 4.8g

149

96
=
x

4.8g
,x=7.45g
二氧化錳的質量為
10.7g-7.45g=3.25g
答:生成氧氣4.8g.
10.7g固體物質中含有氯化鉀7.45g和二氧化錳3.25g.

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