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To determine the concentration of a sodium carbonate solution

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  • Essay length: 651 words
  • Submitted: 15/11/2005
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GCSE Aqueous Chemistry

The first 200 words of this essay...

To determine the concentration of a sodium carbonate solution

Calculating the quantities and the concentration of the reagents

Sodium Carbonate + Hydrochloric acid--> Sodium Chloride + Carbon Dioxide + Water

Na CO + 2HCL --> 2NaCl + CO +H O

Calculating the approximate concentration of the sodium carbonate solution (mol dm ³)

Approx = 5 5 = 0.0472mol dm ³

Concentration Mr 46+12+48

The approximate concentration of Sodium Carbonate is 0.0472mol dm ³

Alkali : Acid

1 : 2

0.05 : x

0.05 : 0.10

Water : Acid

24 : 1

Equipment, apparatus and chemicals

The amounts of solutions needed on:-

* 20cm³ of 2.5 moles of Hydrochloric acid

* 480cm³ of distilled water

* 250cm³ of Sodium Carbonate

* Methyl orange Indicator(which is red in acid and yellow in alkali)

The apparatus needed for dilution of the acid:-

* Labels- so we can tell which beaker contains what.

* 2x Beakers- to hold the acid.

* 1x 10cm³ pipette - to pipette the

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