awdadaddda
13.10.2021 •
Chemistry
Explain why the rf values of the ions on the same chromatogram were not all identical
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Ответ:
From
na=1
nb=1
Va=30mls
Vb=90mls
Ma=0.6M
Mb=?
from
Mb=Ma×Va×nb
Vb×na
Mb=0.6×30×1
90×1
mb=18
90
Mb=0.2M
NaOH=40
From
conc=molarity×mr
conc=0.2×40
conc=8g/mol