Chemistry - Redox Reactions Question with Solution | TestHub

ChemistryRedox ReactionsMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasynumerical

How many millilitres of $0 .5 M$ $H_{2} {SO}_{4}$ are needed to dissolve $0 .5 g$ of copper(II)carbonate?
Report your answer by rounding it up to nearest integer.

Answer:

8.00

Solution:

The balanced chemical reaction is:
CuCO₃+ H₂SO₄→ CuS0₄+ H₂O + CO₂
milli mol of CuCO₃= $\frac{0.5 \times 1000}{123.5}$
= 4.048 mM
milli mol of H₂SO₄required = 4.048 mM
= Molarity x Volume (in mL)
Volume = $\frac{4.048}{0.50}$ = 8.1 mL

Stream:NTA_ABHYASSubject:ChemistryTopic:Redox ReactionsSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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