Chemistry
20.01.2021 23:47
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Chalk is composed of calcium carbonate, CaCO3. A student does not have a balance
Chalk is composed of calcium carbonate, CaCO3. A student does not have a balance but does have 3.00M hydrochloric acid, HCl. If the student finds that it takes 327 millimeters of the acid to react with the chalk, what was the mass of the chalk in grams?
CaCO3(s) + 2HCl(aq) ⟶ CaCl2(aq) + CO2(g) + H2O(I)
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CaCO3(s) + 2HCl(aq) ⟶ CaCl2(aq) + CO2(g) + H2O(I)
catelinboog04
4,4(2 marks)
Explanation:
CH₃C(CH₃)=CH-CH₂-CH₃ ( 2 - methylpent-2-ene)
Cl₂ ⇒ Cl⁺ + Cl⁻
Cl⁺( electrophile)
CH₃C(CH₃)=CH-CH₂-CH₃ + Cl⁺ ( electrophile) ⇒ CH₃C⁺(CH₃)-C(Cl)H-CH₂-CH₃ ( intermediate )
CH₃C⁺(CH₃)-C(Cl)H-CH₂-CH₃ + Cl⁻ ⇒ CH₃CCl(CH₃)-C(Cl)H-CH₂-CH₃ ( final product )
It is electrophilic addition reaction.
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