From b9b99468cb02d233819affe80c60006f6b53c1cd Mon Sep 17 00:00:00 2001 From: Jiban Kumar Majumdar Date: Wed, 7 Aug 2024 08:45:49 +0530 Subject: [PATCH] Add files via upload --- sodium-hydroxide.html | 270 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 270 insertions(+) create mode 100644 sodium-hydroxide.html diff --git a/sodium-hydroxide.html b/sodium-hydroxide.html new file mode 100644 index 0000000..aeaa4b7 --- /dev/null +++ b/sodium-hydroxide.html @@ -0,0 +1,270 @@ + + + + + + Sodium Hydroxide + + + + + + + +
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Sodium Hydroxide

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Practise balancing equations:

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Reactions of Aqueous Sodium Hydroxide:

+ 1. When aqueous Sodium hydroxide is added to a solution of Copper (II) sulphate, a blue precipitate of Copper (II) hydroxide is formed. This precipitate is insoluble in excess aqueous Sodium hydroxide: + +

NaOH + CuSO4→Cu(OH)2 + Na2SO4

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+ Time Taken:00:00 + + + +

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+ +2. When aqueous Sodium hydroxide is added to a solution of Iron (II) sulphate, a green precipitate of Iron (II) hydroxide is formed. This precipitate is insoluble in excess aqueous Sodium hydroxide: + +

NaOH + FeSO4→Fe(OH)2 + Na2SO4

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+ Time Taken:00:00 + + + +

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+ +3. When aqueous Sodium hydroxide is added to a solution of Iron (III) chloride, a reddish brown precipitate of Iron (III) hydroxide is formed. This precipitate is insoluble in excess aqueous Sodium hydroxide: + +

NaOH + FeCl3 →Fe(OH)3 + NaCl

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+ Time Taken:00:00 + + + +

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+ +4. When aqueous Sodium hydroxide is added to a solution of Magnesium sulphate, a white gelatinous precipitate of Magnesium hydroxide is formed. This precipitate is insoluble in excess aqueous Sodium hydroxide: +

+

NaOH + MgSO4 →Mg(OH)2 + Na2SO4

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+ Time Taken:00:00 + + + +

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+ +5. When aqueous Sodium hydroxide is added to a solution of Lead (II) nitrate, a white precipitate of Lead (II) hydroxide is formed. This precipitate dissolves in excess aqueous Sodium hydroxide to form a colourless solution of Sodium plumbite: + +

NaOH + Pb(NO3)2 →Pb(OH)2 + NaNO3

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+ Time Taken:00:00 + + + +

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Pb(OH)2 + NaOH →Na2PbO2 + H2O

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+ +6. When aqueous Sodium hydroxide is added to a solution of Zinc sulphate, a white gelatinous precipitate of Zinc hydroxide is formed. This precipitate dissolves in excess aqueous Sodium hydroxide to form a colourless solution of Sodium zincate: + +

NaOH + ZnSO4 →Zn(OH)2 + Na2SO4

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+ Time Taken:00:00 + + + +

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Zn(OH)2 + NaOH →Na2ZnO2 + H2O

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+ Time Taken:00:00 + + + +

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+ +7. When aqueous Sodium hydroxide is added to a solution of Aluminium chloride, a white gelatinous precipitate of Aluminium hydroxide is formed. This precipitate dissolves in excess aqueous Sodium hydroxide to form a colourless solution of Sodium Aluminate: + +

NaOH + AlCl3 →Al(OH)3 + NaCl

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+ Time Taken:00:00 + + + +

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Al(OH)3 + NaOH →NaAlO2 + H2O

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+8. When aqueous Sodium hydroxide is added to Aluminium oxide, it dissolves to form a colourless solution of Sodium Aluminate: + +

Al2O3 + NaOH →NaAlO2 + H2O

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+ Time Taken:00:00 + + + +

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+9. When aqueous Sodium hydroxide is added to Zinc oxide, it dissolves to form a colourless solution of Sodium zincate: + +

ZnO + NaOH →Na2ZnO2 + H2O

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+ Time Taken:00:00 + + + +

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+10. When aqueous Sodium hydroxide is added to Lead(II) oxide, it dissolves to form a colourless solution of Sodium plumbite: + +

PbO + NaOH →Na2PbO2 + H2O

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+ Time Taken:00:00 + + + +

+

+11. When aqueous Sodium hydroxide is added to Zinc metal, it dissolves to form bubbles of Hydrogen gas and a colourless solution of Sodium zincate: + +

Zn + NaOH →Na2ZnO2 + H2

         

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+ Time Taken:00:00 + + + +

+

+12. When aqueous Sodium hydroxide is added to Lead metal, it dissolves to form bubbles of Hydrogen gas and a colourless solution of Sodium plumbite: + +

Pb + NaOH →Na2PbO2 + H2

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+ Time Taken:00:00 + + + +

+

+13. When aqueous Sodium hydroxide is added to Aluminium metal, it dissolves to form bubbles of Hydrogen gas and a colourless solution of Sodium aluminate: + +

Al + NaOH + H2O →NaAlO2 + H2

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+ Time Taken:00:00 + + + +

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+ + + + + + + + + + + + + + + + + + + +
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