Question

Can any body and we 18 and 19th question please I am having exam at 6:00Pm I want correct answer it's my humble request​

Answer 1

Answer:

1) We know CuCO₃ --------> CuO + CO₂       (Balanced reaction)

                    123.5 g  -------> 79.5 g + 44 g

                     20 g -----------> 12.87 g + 7.1255 g

Hence, no of moles = 7.1255/44 = 0.1619 moles

Volume = 0.1619 * 22.4 = 3.62 L

2) 2 KClO₃ --------> 3 O₂

1.5 KClO₃ ---------> 2.25 O₂   (By unitary method)

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