Laporan Praktikum Kimia Dasar

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Laporan Resmi Praktikum Kimia

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Standarisasi Larutan NaOH

pengenalan gas dan kertas

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Percobaan II Mgrek CaO =

   x 0,01 x m

= 0,2 x 7,8 = 1,56mgrek CaO / liter

Percobaan III Mgrek CaO =

   x 0,01 x m

= 0,2 x 7,5 = 1,5 mgrek CaO / liter

Rata  –  rata  rata kesadahan total sebagai CaO=

 

= 1,5 mgrek CaO / liter 2. Penetapan kesadahan tetap Perhitungan : Titrasi : 4,0 ml 

Kesadahan tetap

=

   x 0,01 x 4,0

= 0,4 mgrek CaO / liter

3. Penetapan kesadahan sementara Kesadahan sementara = kesadahan total  –  kesadahan  kesadahan tetap Sign up to vote on this title

= 1,5  –  0,4  0,4

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= 1,1 mgrek CaO / liter

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