0,672!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Реакция соединения
3Na2O+P2O5-->2Na3PO4
Ответ:
1) деформация
2) плавление, испарение, кристаллизация
184 г значит, h2so4 моль= 184/98=1,87755, моль SO2=0,9387755, V= 0,9387755 *22,4=21 л
<span>K</span>⁺<span>Mn</span>⁺⁷<span>O</span>₄⁻²<span> +3Fe</span>⁺²<span>S</span>⁺⁶<span>O</span>₄⁻²<span> + 2H</span>₂⁺<span>O</span>⁻²<span> ----> Mn</span>⁺⁴<span>O</span>₂⁻²<span> + 3Fe</span>⁺³<span>O</span>⁻²<span>H</span>⁺¹<span>S</span>⁺⁶<span>O</span>₄⁻²<span> + K</span>⁺¹<span>O</span>⁻²<span>H</span>⁺¹
<span>Mn</span>⁺⁷ + 3e=Mn<span> </span>⁺³ 1 ок-ль, вос-ние
Fe⁺² - 1e= Fe⁺³ 3 ок-ль, вос-ние