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nes45tan45
@nes45tan45
August 2022
1
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1)Определите пррцетное содержание элементов в веществе KBr
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asy1253
Дано :
KBR
найти:
w (K)
w (Br)
решение:
w (k) = ar (k)*n (k)/M (KBr)*100%=39/39+80*100%=32.77%
w (Br)= 80*100%/119=67.22%
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Answers & Comments
KBR
найти:
w (K)
w (Br)
решение:
w (k) = ar (k)*n (k)/M (KBr)*100%=39/39+80*100%=32.77%
w (Br)= 80*100%/119=67.22%