https://theconversation.com/profiles/123movies-us-2019-hd-full-movie-online-free-1098886
https://theconversation.com/profiles/123movies-doctor-sleep-2019-hd-full-movie-online-free-1098893
https://theconversation.com/profiles/123movies-jojo-rabbit-2019-hd-full-movie-online-free-1098898
https://theconversation.com/profiles/123movies-capone-2020-hd-full-movie-online-free-1098901
https://theconversation.com/profiles/123movies-love-wedding-repeat-2020-hd-full-movie-online-free-1098903
https://theconversation.com/profiles/123movies-home-again-2017-hd-full-movie-online-free-1098905
https://theconversation.com/profiles/123movies-godzilla-vs-kong-2020-hd-full-movie-online-free-1098909
Объяснение:
https://theconversation.com/profiles/123movies-watch-justice-league-dark-apokolips-war-2020-full-movie-free-download-hd-1098981
https://theconversation.com/profiles/123movies-watch-the-invisible-man-2020-full-movie-free-download-hd-1098989
https://theconversation.com/profiles/123movies-watch-sonic-the-hedgehog-2020-full-movie-free-download-hd-1098990
https://theconversation.com/profiles/123movies-watch-birds-of-prey-2020-full-movie-free-download-hd-1098991
https://theconversation.com/profiles/123movies-watch-trolls-world-tour-2020-full-movie-free-download-hd-1098993
https://theconversation.com/profiles/123movies-watch-scoob-2020-full-movie-free-download-hd-1098995
https://theconversation.com/profiles/123movies-watch-blue-story-2019-full-movie-free-download-hd-1098998
Объяснение:
NH2-CH2CH2COOH + NaOH = NH2-CH2CH2COONa + H2O
M1(NH2-CH2CH2COOH) =90 г/моль
M2( NH2-CH2CH2COONa) =111г/моль
m(практич) = 100г
n -?
n= m(практич)*100% / m(теор)
m(теор) =M2*m(прак)/M1 = 111*89/90=109.7 г
n= 100 * 100% / 109.7 = 91%