Предмет: Химия, автор: hohmoh007

Визначити масу соди, яка міститься у розчині масою 200 г із масовою
часткою розчиненої речовини 40%.

Ответы

Автор ответа: densen4game05
0

Ответ:

200 г = 100%

40% =  ?

200 : 100 = 2 г = 1%

40 * 2 = 80 г

Объяснение:

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Українська література, автор: lyubachipak

костенко крыла выписать художние засобы
1 год назад
Предмет: Английский язык, автор: Casdanic815
Переведите текст(без переводчика)

London,
Great Britain
1st March

Dear Jess,
I'm in London with classmates.Wa are having a great time. Lots to see and to visit in London! Lots to see and to visit in London! Let me tell you about our stay here.
  On Monday, we visited the Tower of London  and spent the whole day there. I took lots of photos. Next to the Tower there's the famous Tower Bridge. I was lucky to get photos of Tower Bridge when it was open, wasn't i? I'll show you sometime. Next day we went to Bucking ham Palace and saw the Changing of the Guard. There were a lot of tourists there. Imagine, there are more than 600 rooms in the palace and the royal family has got a cinema and a swimming pool in there!
  We spent Wednesday in Greenwich. We went there on a boat. We visited the "Prime Meridian", the imaginary line that divides the world into east and west. Fantastic place!
  Yesterday it was rainy and windy, so we went to the British Museum. You collect coins, don't you? I bought a special souvenir for you there. Hope you'll like it. Today it's sunny and warm, and we are going to the London Eye.
  Well, I must go now. It's time to leave.
  Best wishes
  Dima. 
1 год назад
Предмет: Английский язык, автор: mihailgritsenk
проверьте пжл. я начал мыть тарелки 5 минут назад и мою их до сих пор. i have started washing plates 5 min ago and i have been washing them till now
1 год назад
Предмет: Математика, автор: imbryglia
Яка з відповідей зображає правильне співвідношення?
8 лет назад
Предмет: Математика, автор: Danilatupoy
помогите решить плиз)  интегралы
(1-2i)(1+2i)
8 лет назад