Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptMiscellaneous/MixedMedium2 minPYQ_2025

ChemistryMediumassertion reason

The amount of calcium oxide produced on heating 150 kg limestone ( $75%$ pure) is ______ kg. (Nearest integer)
Given : Molar mass (in $g mol^{- 1}$ ) of Ca-40, O-16, C-12

Answer:

Solution:

$CaCO_{3} \to CaO + CO_{2} mass of CaCO_{3} = \frac{150 \times 75}{100} = 112.5 kg = 112500 g n_{CaCO_{3}} = 1125 So moles of CaO = 1125 mass of CaO = \frac{1125 \times 56}{1000} = 63 kg Correct answer \Rightarrow 63$

Stream:JEESubject:ChemistryTopic:Mole ConceptSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2025

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