Предмет: Химия, автор: cocojambo228227

Скільки сірчистого газу (кількість речовини, об’єм ) утвориться при згорянні 38г
сірки?

Ответы

Автор ответа: boberchik2811
1
При згорянні сірки утворюється сірчистий газ SO2. Реакція горіння сірки:

```
S + O2 → SO2
```

За цією реакцією, на 1 моль сірки (32 г) утворюється 1 моль сірчистого газу (64 г). Отже, при згорянні 38 г сірки утвориться 0,6 моль сірчистого газу, що відповідає об’єму 2,56 л (при нормальних умовах).

```
n(SO2) = 38/32 = 0,6
V(SO2) = 0,6 * 22,4 = 2,56
```

Відповідь: 0,6 моль, 2,56 л.

Розрахунок можна виконати і за молярними масами речовин:

```
n(SO2) = m(S) / M(S) = 38 / 32 = 0,6
V(SO2) = n(SO2) * M(SO2) / M(O2) = 0,6 * 64 / 32 = 2,56
```
Похожие вопросы
Предмет: Английский язык, автор: Аноним
D Proper names
1. ______ Mall is a wide avenue leading from .. .Trafalgar Square to ______ Buckingham
Palace, the residence of the English kings.
2. The centre of ______ City is represented by three buildings: ______ Mansion House,
______ Royal Exchange and ______ Bank of ______ England.
3. When will he arrive at ______ Heathrow airport?
4. ______ Bolshoi Theatre is famous for its ballet performances.
5. ______ Princess Diana stayed at ______ Hilton Hotel.
6. People coming to London often do shopping in ______ Oxford Street.
7. ______ London Zoo is situated in ______ Regent Park in London.
8. If you are interested in churches and historical places, you should by no means see ______
Westminster Abbey, ______ Houses of Parliament, ______ St. Paul’s Cathedral and ______
Tower.
9. ______ British Museum is famous for its library, one of the richest in the world.
10. The English Parks – ______ Hyde Park, ______ Kensington Gardens and ______ Kew
Gardens where you forget that you are in the city, struck me most of all.
11. Julius Caesar founded ______ Tower of London.
12. Across the road from ______ Westminster Abbey is ______ Westminster Palace, the seat of
______ British Parliament.
13. My train leaves from ______ Waterloo Station at 2.10 a.m.
14. ______ West End is the symbol of a wealthy and luxurious life.
15. If you like art galleries you should go to ______ National Gallery and ______ Tate.
16. Where do you live? – I live in ______ High Street.
17. On ______ Wednesday ______ Financial Times published an article about the situation in
______ North Korea.

18. Are you going to stay at ______ St. Marcus Hotel? – No, at ______ Plaza Hotel.
19. If you want to do shopping, go to ______ Oxford Street or ______ Bond Street.
20. In ______ north there are ______ Cheviots. These are the mountains which separate ______
England from ______ Scotland.
Предмет: Геометрия, автор: laggeradventure