Предмет: Химия, автор: zhenzmi1236

как найти молярную массу 10 г водорода ​

Ответы

Автор ответа: bloodycoffin44
0

чтобы найти сколько молей в 10 г водорода воспользуемся формулой:

n=M/m, где n - количество вещества, m- масса, а M- молярная масса

n(H2)=m(H2)/M(H2)

молярную массу водорода находим так: Ar(H)*2=1*2=2г/моль

n(H2)= 10г/2г.моль = 5 моль

^^

zhenzmi1236: спасибо
zhenzmi1236: не подскажешь как найти эквивалент
bloodycoffin44: сейчас вспомню если..
bloodycoffin44: просто эквивалент?
bloodycoffin44: или там эквивалентное число кислоты формула или просто вещества?..
zhenzmi1236: зайди посмотри у меня там полное задание весит в профиле
zhenzmi1236: пожалуйста
zhenzmi1236: помоги
bloodycoffin44: хорошо ^^
zhenzmi1236: спасибо
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