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Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptEmpirical and Molecular FormulaEasy2 minQB

ChemistryEasysingle choice

The percentage of Se in peroxidase enzyme is $0.5%$ by mass (atomic mass of $Se = 78.4 amu$ ). Then, the minimum molecular mass of enzyme which contains not more than one Se atom is

Options:

Answer:

Solution:

0.5 g of Se is present in 100 g of enzyme. Therefore,

78.4 g Se will be present in $\frac{78.4 \times 100}{0.5} g o f e n zy m e = 15680 g$

Thus, the minimum molecular mass of the enzyme is $1.568 \times 1 0^{4}$ .

Stream:JEESubject:ChemistryTopic:Mole ConceptSubtopic:Empirical and Molecular Formula

⏱ 2mℹ️ Source: QB

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