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1 solution contains a mixture of Na_(2)CO_(3) and NaOH. Using phenolphthalein as indicator. 25ml. of mixture required 19.5 ml. of 0.995 N HCl for the end point. With methyl orange. 25ml. of solution required 25 ml. of the same. HCl for the point. Calculate grams per litre of each substance in the mixture. |
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