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Sveta1314
@Sveta1314
August 2021
1
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Обчисліть відносні молекулярні (формульні) маси для таких речовин:
Mr(CaO)
Mr(Na3PO4)
Mr(MgCO3)
Mr(Cu(NO3)2)
Mr(H2S)
Mr(Cr2(SO4)3)
Mr(Ag(NH3)2OH
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svetka1574
Verified answer
Mr(CaO) = 40+16 = 56
Mr(Na3PO4) = 23*3 + 31 + 16*4 = 164
Mr(MgCO3) = 24 + 12 + 16*3 = 84
Mr(Cu(NO3)2) = 64 + 14*2 + 16*6 = 188
Mr(H2S) = 1*2 + 32 = 34
Mr(Cr2(SO4)3) = 52*2 + 32*3 + 16 *12 = 392
Mr(Ag(NH3)2OH) = 108 + 14*2 + 1*6 + 16 + 1 =159
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Answers & Comments
Verified answer
Mr(CaO) = 40+16 = 56Mr(Na3PO4) = 23*3 + 31 + 16*4 = 164
Mr(MgCO3) = 24 + 12 + 16*3 = 84
Mr(Cu(NO3)2) = 64 + 14*2 + 16*6 = 188
Mr(H2S) = 1*2 + 32 = 34
Mr(Cr2(SO4)3) = 52*2 + 32*3 + 16 *12 = 392
Mr(Ag(NH3)2OH) = 108 + 14*2 + 1*6 + 16 + 1 =159