Вопрос школьника по предмету Химия
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До натрій карбонату масою 212 г долили етанову кислоту . Який об’єм газу, що виділився при цьому?
Ответ учителя по предмету Химия
212 г
Na2CO3 + 2CH3COOH =
106г
х л
2CH3COONa + CO2 + H2O
22,4 л
212 г — х л
106 г — 22,4 л
х =( 22,4 × 212)÷106 = 44,8 л
Відповідь: 44,8 л
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