Https://www.nvidia.com/en-us/geforce/forums/shield-tv/9/355571/1080p-hd-365-dni-2020-full-movie/
https://www.nvidia.com/en-us/geforce/forums/shield-tv/9/355588/365-dni-2020-channel-full-movie/
https://www.nvidia.com/en-us/geforce/forums/shield-tv/9/355599/film-365-dni-2020-full-movie/
https://www.nvidia.com/en-us/geforce/forums/shield-tv/9/355573/365-dni-2020-full-movie/
https://www.nvidia.com/en-us/geforce/forums/shield-tv/9/355589/365-dni-2020-hd1080p-full-movie/
https://www.nvidia.com/en-us/geforce/forums/shield-tv/9/355597/watch-hd-365-dni-2020-full-movie/
https://www.nvidia.com/en-us/geforce/forums/shield-tv/9/355574/365-dni-producer-film-2020-full-movie/
https://www.nvidia.com/en-us/geforce/forums/shield-tv/9/355590/365-dni-2020-official-new-full-movie/
https://www.nvidia.com/en-us/geforce/forums/shield-tv/9/355596/365-dni-2020-new-full-movie-hd/
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Ответы на вопрос:
Формула мела - caco3 caco3 + 2hcl = cacl2 + h2o + co2 m (чист.в-ва) = m(смеси)*ω(чист.в-ва) ω(caco3 чист.) = 100% - ω(примеси) = 100% - 25% = 75% или 0,75 m(caco3 чист.) = 1,5 г * 0,75 = 1,125 г. найдем количество caco3: n(caco3) = = 0,0125 моль по уравнению реакции количество hcl в 2 раза больше количества caco3: n(hcl)=2n(caco3)= 0,0125 моль * 2 = 0,025 моль = 0,5 = v= =0,05 л. ответ: 0,5 л.
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