5 моль НЗРО4 растворили и получили 500г раствора найдите массовую долю растворенного
вещества
goodblood197
1
25.12.2020 15:45
0
Другие вопросы по теме Химия
leisalina4
17.03.2022 01:06
semchenko2005
17.03.2022 01:09
аы437
17.03.2022 01:16
hatechanoy23l1
17.03.2022 01:16
Dufrenb
17.03.2022 01:34
ElizabetSnow
20.06.2019 03:00
SoniaSor
20.06.2019 03:00
sonyaway12
20.06.2019 03:00
tiffany0013
20.06.2019 03:00
Популярные вопросы
- Write what you think of space exploration. Use the expressions...
3 - Use the word in capitals to form a word that fits suitably in the...
2 - Write down questions for the following answers. Use the text in...
2 - Write about the weather in your place....
3 - Make up statements by matching their two parts. Write them down....
2 - Complete the sentences by choosing the right ending. Write them...
3 - Write down questions for the following answers. Use the text in...
1 - What is the most dangerous natural disaster to your mind? Write...
1 - Do Ex. 71 on p. 21 in written form. We have known each other since...
2 - Put the verbs in the past simple and the past perfect. PAST SIMPLE...
2
w%(H₃PO₄) = 49,49 %
Объяснение:
m(H₃PO₄) = n(H₃PO₄) * M(H₃PO₄) = 5 моль * (1 * 3 + 31 * 1 + 16 * 4) г/моль =
= 490 г
w%(H₃PO₄) = m(H₃PO₄)/m(р-ра H₃PO₄) * 100% = 490 г/(490 г + 500 г) * 100 =
= 49,49 %