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Kivison
@Kivison
July 2022
2
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Рассчитайте молекулярную массу вещества. Определите процентное содержание каждого элемента в веществе CuSO4
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Answers & Comments
Lizzza04
Mr(CuSO4)=64+32+16*4=160
%Cu=64*100/160=40%
%S=32*100/160=20%
%O=16*4*100/160=40%
0 votes
Thanks 0
smirnovayulia123
Mr(
CuSO4) = Ar(Cu)+Ar(S)+4Ar(O)
Mr(
CuSO4) = 64 + 32 + 4*16 = 160
w(Cu) = Ar(Cu) /
Mr(CuSO4) * 100%
w(Cu) = 64 / 160 * 100% = 40%
w(S) = Ar(S) / Mr(CuSO4) * 100%
w(S) = 32 / 160 * 100% = 20%
w(O) = 4Ar(O) / Mr(CuSO4) * 100%
w(O) = 64 / 160 * 100% = 40%
3 votes
Thanks 0
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Answers & Comments
%Cu=64*100/160=40%
%S=32*100/160=20%
%O=16*4*100/160=40%
Mr(CuSO4) = 64 + 32 + 4*16 = 160
w(Cu) = Ar(Cu) / Mr(CuSO4) * 100%
w(Cu) = 64 / 160 * 100% = 40%
w(S) = Ar(S) / Mr(CuSO4) * 100%
w(S) = 32 / 160 * 100% = 20%
w(O) = 4Ar(O) / Mr(CuSO4) * 100%
w(O) = 64 / 160 * 100% = 40%