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Chemistry - Redox Reactions Question with Solution | TestHub

ChemistryRedox ReactionsProblem involving Equivalent ConceptEasy2 minQB

ChemistryEasysingle choice

A small amount of $CaC O_{3}$ completely neutralizes 250 ml of 0.2 N $HCl$ and no acid is left at the end. After converting all calcium chloride to $CaS O_{4}$ , how much plaster of Paris can be obtained?

Options:

Answer:

Solution:

meq $HCl$ = 250 $x$ 0.2 = 50 meq, so $C a^{2 +}$ = 25 mmol. $CaS O_{4} \cdot 1/2 H_{2} O$ (molar mass 145): mass = 25 $x$ 145 mg = 3.625 g, option (a).

Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Problem involving Equivalent Concept

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