a) CTHH: Al(OH)3
\(PTK_{Al\left(OH\right)_3}=27+3\times\left(16+1\right)=78\left(đvC\right)\)
b) CTHH: Na2S
\(PTK_{Na_2S}=23\times2+32=78\left(đvC\right)\)
c) CTHH: Mg3(PO4)2
\(PTK_{Mg_3\left(PO_4\right)_2}=24\times3+2\times\left(31+16\times4\right)=262\left(đvC\right)\)
d) CTHH: SO2
\(PTK_{SO_2}=32+16\times2=64\left(đvC\right)\)
a/ Al(OH)3
PTK = 27 + 17.3 = 78 đvC
b/ Na2S
PTK= 23.2+32=78 đvC
c/ Mg3(PO4)2
PTK = 24.3+95.2=262 đvC
d/ SO2
PTK= 32+16.2=64 đvC
a,Al(OH) \(_3\)
b,NAS(ll)
c,Mg\(_3\)(PO\(_4\))\(_2\)
d,SO\(_2\)
a) CTHH: Al(OH)3
\(PTK_{Al\left(OH\right)_3}=27+3\times\left(16+1\right)=78\left(đvC\right)\)
b) CTHH: Na2S
\(PTK_{Na_2S}=23\times2+32=78\left(đvC\right)\)
c) CTHH: Mg3(PO4)2
\(PTK_{Mg_2\left(PO_4\right)_3}=24\times2+3\times\left(31+16\times4\right)=333\left(đvC\right)\)
d) CTHH: SO2
\(PTK_{SO_2}=32+16\times2=64\left(đvC\right)\)