Home
О нас
Products
Services
Регистрация
Войти
Поиск
Victorу
@Victorу
October 2021
1
14
Report
Задачка.
Найти массу 20% раствора NaOH, необходимого для полной нейтрализации
400г 49% раствора H3Po4.
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms of service
You must agree before submitting.
Send
Answers & Comments
udodovi
Verified answer
M(H3PO4) в-ва = м р-ра *ω/100%=400г*49%/100%=196г
хг 196г
3NaOH+H3PO4=Na3PO4+3H2O
120г 98г
х= 120*196/120=240г m(NaOH)в-ва
m(NaOH)р-ра = м в-ва *100%/ω= 240г*100%/20%=1200г
0 votes
Thanks 0
×
Report "Задачка.Найти массу 20% раствора NaOH, необходимого для полной нейтрализации 400..."
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
О нас
Политика конфиденциальности
Правила и условия
Copyright
Контакты
Helpful Social
Get monthly updates
Submit
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
M(H3PO4) в-ва = м р-ра *ω/100%=400г*49%/100%=196гхг 196г
3NaOH+H3PO4=Na3PO4+3H2O
120г 98г
х= 120*196/120=240г m(NaOH)в-ва
m(NaOH)р-ра = м в-ва *100%/ω= 240г*100%/20%=1200г