Предмет: Химия, автор: klashroyale258

Срочно! 50 баллов! Сколько грамм оксида образуется при взаимодействии серы с 224 литров кислорода?

Ответы

Автор ответа: dasshtrudel
3

Ответ:

Сера горит по реакции с образованием оксида серы 4.

S + O2 = SO2

Из реакции следует что из 1 моль кислорода образуется 1 моль SO2

n(O2)=224/22.4=10 моль

Молярная масса SO2 = 32+16*2=64 г/моль

m(SO2)=10*64=640 грамм


stanislavrabec62: помоги пожалуйста " визначте відносну густину за воднем та повітрям пропану С3 Н8" пожалуйста с розв'язанням
klashroyale258: Спасибо лучший
dasshtrudel: Плотность по водороду равна 44/2 плотность по воздуху 44/29
klashroyale258: И?
dasshtrudel: Что именно "и"
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Read the text in Exercise 6 again and answer the questions.

1) How many holidays do Russian shoolchildren have a year?
2) What are the longest shool holidays?
3) When do they begin and finish?
4) Where can Russian shoolchildren travel in summer?
5) What place did Peter travel to last summer?
6) Did he like the place?
7) What did he write aboun it?
8) Is Peter going to visit this place again?

Пожалуйста сделайте, буду рада :)