Предмет: Химия, автор: lucacu

рассчитайте концентрации ионов водорода и pH раствора в котором концентрация ионов OH- равна 10-6 моль/л

Ответы

Автор ответа: seitovasurianna

1

Ответ:

....,......... пж сделай лучшей

Приложения:

zberovskayap43s1j: неправильно

Автор ответа: Kartofunoff

0

pH раствора равен логарифму концентрации ионов водорода =5

p OH = 14 - 5 = 9

C (OH) = 10-⁹ моль/л

zberovskayap43s1j: неправильно

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Қазақ тiлi, автор: бика2

сөйлем құрап жаз: аяқ,

1 год назад

Предмет: Английский язык, автор: Стас13371

Complete the sentences with these words:
appearence, constant, criticise, entertaiment, inspire, journalist, press, put up with, soap opera, sleeveless.

A....is someone who writes articles for a newspaper.
To.....is to say something bad or unpleasant about someone.
A......is a popular television drama.
Films, concerts and TV series are popular forms of.......
.......is the way someone or something looks.
A.......dress is one that has no sleeves.
Something which is.........happens all the time.
To.......something is to carry on even though is is unpleasant.
The.....are all the newspapers and magazines.
To........something is to cause it to happen.

1 год назад

Предмет: Английский язык, автор: lelya37

Помогите пожалуйста с английским.Нужно на картинке выбрать любой город, и написать про него 5-7 предложений на английском с переводом.Где находится.на каком языке разговаривают,какие достопримечательности в нем есть и все в таком духе.Картинка прилагается.За ранее спасибо большое.

1 год назад

Предмет: Английский язык, автор: Lena1423

Поставьте пожалуйста в косвенную речь срочно нужно спасибо заранее

1.“Be ready! At 5 o’clock we will be at business centre”, said Angela to John.
2. I asked classmates, “Where has Tom gone?”
3. “I am sorry, I am late. I lost my way”, John said to our guide.
4. Gerry asked, “Can you lend me some money, Mike?”
5. “There is no paper in the box”, the secretary said to boss.
6. Mike said, “I am living in London now.”
7. Mila asked her husband, “Why doesn’t this machine work?”
8. Ken said to dad, “Don’t sell the car.
9. Andrew said to the patient, “Stay in bed for a few days.”
10. Marry said, “I went to London with my sister last week.”
11 .My friend said, “I have watched a lot of soap operas.”
12. He asked, “Will Tom be here next Wednesday?”
13. My mother asked,” Did you clean the room yesterday?”
14. Her teacher said, “I am not going to ask you now.”
15. The teacher asked, “How did the accident happen?”
16. My cousin said to his teacher, “We are not interested in politics.”
17. Henry said me, “What will you tell the police tomorrow?”
18. Tom said, “New York is more lovely than London.”
19. “Are you kidding with us, Fiona?”, she asked.
20. She wrote me in a message, “Put up at this hotel”

8 лет назад

Предмет: Английский язык, автор: laylaakra

Помагите пожалуйста срочно!!!

8 лет назад