Предмет: Химия, автор: maksiiiik

знайти массу оксигена 150г HN03

Ответы

Автор ответа: CrazyGuy07

0

Ответ:

Ответ:

Объяснение:

Находим процентную концентрацию кислорода в кислоте

ω(О) = 48/63 = 0.76

m(O) = 0.76*150 = 114 гр

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: fera2006

как я провела лето помогите пожалуйста

1 год назад

Предмет: Окружающий мир, автор: ZAIPER25

В 1852 году в одном из зданий Эрмитажа был торжественно открыт публичный Императорский музей. На какой картинке изображён предмет мужской одежды, при отсутствии которого не разрешался вход в публичный Императорский музей?

1 год назад

Предмет: Английский язык, автор: alinkaromanovn1

Cроооооооооооооооочно!
Помогите!!
In the past, I 1____ be really keen on motorbikes, and one summer, when I was seventeen, a biker friend 2____ me to join him at a motorbike festival in Wales. He said that we could camp at the festival and that he had plenty of room in his tent for me.
We got up early on the Saturday morning and got on our motorbikes for the five-hour drive to Wales. My bike was going well 3____ first, but then it 4____ broke down. I 5____ that I didn’t have enough petrol in my bike before we left home. I had to push my bike to the next petrol station, which was about three miles away! After about an hour, we reached the petrol station and filled up my bike! Then we continued on our long journey to the festival.
When we turned 6____ at the campsite near the festival, it 7____ hard and really cold. So I was really 8____ when I found out that my friend’s tent was only a two-person tent, and he 9____ sixteen people to stay in it! Luckily, one of the other people had brought another, larger tent, so there was enough room for us all, 10____ the end!

1. A use B use to C used D used to
2. A had invited B invited C was invited D was inviting
3. A at B by C in D to
4. A initially B finally C fortunately D suddenly
5. A didn’t realise B hadn’t realised C had realised D realised
6. A down B into C out D up
7. A had rained B rained C raining D was raining
8. A ashamed B embarrassed C guilty D irritated
9. A asked B had asked C was asked D was asking
10. A by B for C in D with

1 год назад

Предмет: Геометрия, автор: Rabbit0u

Решите пожалуйста! 7 класс

7 лет назад

Предмет: Математика, автор: zhatl

используя формулу для нахождения периметра квадрата, выразите длину стороны квадрата a через мириметр P. Найдите a, если P равен:12 см, 8 дм, 28 дм

7 лет назад