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sophiaraziki
@sophiaraziki
July 2022
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массовая доля фосфора в ортофосфорной кислоте
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sokolovaa96p3qu42
Verified answer
Mr(H3PO4) = 3Ar(H) + Ar(P) + 4Ar(O) = 3*1 + 31+ 4*16 = 98,
w(P)= 31/98 *100 = 32%=0,32
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Verified answer
Mr(H3PO4) = 3Ar(H) + Ar(P) + 4Ar(O) = 3*1 + 31+ 4*16 = 98,w(P)= 31/98 *100 = 32%=0,32