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PTK SO₃=32+48=80 đvC

PTK NaHCO₃=23+1+12+48=84 đvC

PTK Al₂(SO₄)₃=54+96+192=342 đvC

PTK PbSO₄=207+32+64=303 đvC

PTK CH₄=12+4=16 đvC

PTK: + H₃PO₄ = 191 đvC

         + Na₂CO₃ = 106 đvC

         + SO₃ = 80 đvC

         + NaOH = 49 đvC

         + Al₂(SO₄)₃ = 342 đvC

PTK: + H₃PO₄ = 191 đvC

         + Na₂CO₃ = 106 đvC

         + SO₃ = 80 đvC

         + NaOH = 49 đvC

         + Al₂(SO₄)₃ = 342 đvC

\(PTK_{H_3PO_4}=1.3+31+16.4=98\left(đvC\right)\)

\(PTK_{Na_2CO_3}=23.2+12+16.3=106\left(đvC\right)\)

\(PTK_{SO_3}=32+16.3=80\left(đvC\right)\)

\(PTK_{NaOH}=23+16+1=40\left(đvC\right)\)

\(PTK_{Al_2\left(SO_4\right)_3}=27.2+\left(32+16.4\right).3=342\left(đvC\right)\)

Mik ko hiểu đề lắm, bn viết dễ hiểu hơn đi

Ba zơ:

NaOH : natri hyđroxit

Muối sunfat:

FeSO4 : Sắt II sunfat

Al2(SO4)3 : Nhôm sunfat

Muối clorua : 

KCl : kali clorua

oxit bazơ:

FeO : Sắt II oxit 

MgO : magie oxit

oxit axit:

SO3 : lưu huỳnh trioxit

P2O5 : điphotpho pentaoxit 

axit : HNO3 : axit nitric

a) \(M_{SO_3}=32+48=80\left(DvC\right)\\ \%S=\dfrac{32}{80}.100\%=40\%\\ \%O=100\%-40\%=60\%\)

b)\(M_{CuSO_4}=64+32+16.4=160\left(DvC\right)\\ \%Cu=\dfrac{64}{160}.100\%=40\%\\ \%S=\dfrac{32}{160}.100\%=20\%\\ \%O=100\%-40\%-20\%=40\%\)

c) \(M_{H_3PO_4}=1.3+31+16.4=98\left(DvC\right)\\ \%H=\dfrac{1.3}{98}.100\%=3\%\\ \%P=\dfrac{31}{98}.100\%=31\%\\ \%O=100\%-3\%-31\%=66\%\)

d) \(M_{Al_2\left(SO_4\right)_3}=27.2+\left(32+64\right).3=342\left(DvC\right)\\ \%Al=\dfrac{27.2}{342}.100\%=15\%\\ \%S=\dfrac{32.3}{342}.100\%=28\%\\ \%O=100\%-15\%-28\%=57\%\)

a.\(\%S=\dfrac{32\times100}{32+16\times3}=40\%\)

%O = 100 - 40 = 60%

b.\(\%Cu=\dfrac{64\times100}{64+32+16\times4}=40\%\)

\(\%S=\dfrac{32\times100}{64+32+16\times4}=20\%\)

%O = 100 - 40 - 20 = 40%

c.\(\%H=\dfrac{3\times100}{3+31+64}=3.1\%\)

\(\%P=\dfrac{31\times100}{3+31+64}=31.6\%\)

%O = 100 - 3.1 - 31.6 = 65.3%

d.\(\%Al=\dfrac{54\times100}{54+96+192}=15.8\%\)

\(\%S=\dfrac{96\times100}{54+96+192}=28.1\%\)

%O = 100 - 15.8 - 28.1 = 56.1%

2/

Na2O+ H2O----->2NaOH

2NaOH +SO2---->Na2SO3+H2O

Na2SO3+2HCl-----> 2NaCl +H2O+SO2

2SO2+O2----> 2SO3

SO3 +H2O----->H2SO4

H2SO4 +2KOH---->K2SO4+H2O

3K2SO4 +2AlCl3-->AL2(SO4)3+6KCl

Al2(SO4)3 + 6NaOH---->3NA2SO4+ 2Al(OH)3

Na2SO4 +2C +CO2---->NA2CO3 +CaS +CO2

Na2O+H2->NaOH

NaOH+SO2->Na2SO3+H2O

Na2SO3+H2SO4->H2O+Na2SO4+SO2

SO2+O2->SO3

SO3+H2O->H2SO4

H2SO4+KOH->K2SO4+H2O

K2SO4+Al(OH)3->Al2(SO4)3+KOH

Al2(SO4)3+NaOH->Al(OH)3+Na2SO4

Na2SO4 + H2CO3->Na2CO3 + H2SO4

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