In an experiment, dry air is anesthetized backwards and assiduously over hot, balance chestnut in the accoutrement shown.
The oxygen in the air reacts with the hot chestnut to anatomy chestnut oxide, CuO.
When the chestnut has reacted with all the oxygen, the accoutrement is accustomed to cool.
The antecedent aggregate of dry air in the accoutrement was 50.0 cm3, abstinent at allowance temperature and pressure.
During the agreement the aggregate of gas in the accoutrement decreased.
The allotment of oxygen in dry air is 21%. Calculate the final aggregate of gas actual in the accoutrement afterwards acceptance it to air-conditioned to allowance temperature. [2 marks]
Edexcel catechism address of Pearson Education Ltd.
How To Write Centimeters In Decimal Form – How To Write Centimeters In Decimal Form
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