Предмет: Химия, автор: mnstrskay

n(Fee (SO4)3) - 5 моль

Ответы

Автор ответа: amriyazdonnabiev

1

Ответ:

М(Fe2(SO4)3=400гр/моль

m=n*M =400*5=2000шр

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: Lecho00

1. Read the text and make it complete choosing the best items to fill in the gaps.
The first Viking to (1) __________ in Iceland was a Norwegian (2) __________, Ingolfur Arnarson, in 874 AD. The Vikings soon found that living in Iceland was just as difficult as living in Scandinavia, because they had to search (3) __________ to find strips of fertile land where crops could be grown and cattle grazed. (4) __________ these hardships and the cold, wet, windy climate, the Vikings settled down, set up farms, built huts and erected houses. About ten years later, though, Viking history began to repeat (5) __________ . In Iceland, as in Scandinavia, good farming land became scarce, food became short and some of the Iceland Vikings began to look further west for new homes. They found them in Greenland, which (6) __________ in 982 AD by Erik the Red. Four years (7) __________ , Erik left Iceland for Greenland with twenty-five ships, full of settlers, but only fourteen ships reached Greenland
(8) __________ . Within (9) __________ years, the Vikings had set up three hundred farms in Greenland, some with as many as twenty cows, (10) __________ goats and (11) __________ and Erik the Red had (12) __________ cows on his large farm at Brattahlid.
The Vikings made (13) __________ butter and cheese to eat, and they found the hunting in Greenland was very good: there were caribou and bears and (14) __________ whales, seals and (15) __________ in the sea.
1. a) come b) place c) settle d) position
2. a) boss b) leader c) president d) chieftain
3. a) hardly b) hard c) heavily d) heavy
4. a) Despite b) In spite c) Though d) Nevertheless
5. a) herself b) himself c) themselves d) itself
6. a) explored b) exploring c) was explored d) was exploring
7. a) latter b) later c) latest d) last
8. a) safely b) safe c) safety d) safeness
9. a) few b) little c) a few d) a little
10. a) well b) as well c) as d) as well as
11. a) sheep b) sheeps c) ship d) ships
12. a) fourty b) forty c) forties d) fourth
13. a) plenty b) plenty of c) a good many d) a great number of
14. a) plenty of b) a lot c) a good deal of d) plenty
15. a) much fish b) many fishes c) many fish d) a lot of fishes

2 года назад

Предмет: Английский язык, автор: cvetkovamrj

Помогите пожалуйста.№9

2 года назад

Предмет: Английский язык, автор: artemvasilev2005

Какая русская транскрипция у слова ducklings?

2 года назад

Предмет: Английский язык, автор: 12345677613

пожалуста помогите сделать срочно!

8 лет назад

Предмет: Алгебра, автор: kittti65

Дробь 7/3 перевести в десятичную

8 лет назад