Question

A 3.00 l sample of air from a big city was bubbled through a solution containing 50.0 ml of 0.0116 m ba(oh)2, which caused the co2 in the sample to precipitate as baco3. The excess base was back-titrated to a phenolphthalein endpoint with 23.6 ml of 0.0108 m hcl. Calculate the parts per million of co2 in the air (i.E ml co2/10^6 ml air). Use 1.98 g/l as the density of co2

Answer 1

your answer will be like this

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