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Nazgul111
@Nazgul111
August 2022
2
2
Report
SuSO .
SO2
P2O5.
H2SO4
CaCO3
Fe (OH) 3.
Найти относительную молекулярную массу.
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ДакСвет
SO2 Mr=32+16*2=64 ; P2O5 Mr=31*2+16*5=142 ; H2SO4 Mr=1*2+32+16*4=98 ; CaCO3 Mr=40+12+16*3=100 ; Fe(OH)3 Mr=56+16*3+1*3=107
2 votes
Thanks 1
Nazgul111
спасибо большое)
valentinamahu2000
Mr(So2)=Ar(S)+Ar(O)*2=32+16*2=64
Mr(P2O5)Ar(P)*2+Ar(O)*5=31*2+16*5=62+80=142
Mr(H2SO4)=Ar(H)*2+Ar(S)+Ar(O)*4=2+32+64=98
Mr(CaCO3)=Ar(Ca)+Ar(C)+Ar(O)*3=40+12+48=100
Mr(Fe(OH)3)=Ar(Fe)+Ar(O)*3+Ar(H)*3=56+3+48=107
1 votes
Thanks 1
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Answers & Comments
Mr(P2O5)Ar(P)*2+Ar(O)*5=31*2+16*5=62+80=142
Mr(H2SO4)=Ar(H)*2+Ar(S)+Ar(O)*4=2+32+64=98
Mr(CaCO3)=Ar(Ca)+Ar(C)+Ar(O)*3=40+12+48=100
Mr(Fe(OH)3)=Ar(Fe)+Ar(O)*3+Ar(H)*3=56+3+48=107