if a student see an iron scoopula, instead of a plastic one, to add the unknown

Q: if a student see an iron scoopula, instead of a plastic one, to add the unknown

Suppose the metal is estimated by a gravimetric method. If there is a specifc reagent which will precipitate only the metal ion (and not Iron) ,then the presence of ferrous ions will not affect the calculated mass of the metal. If the actual experiment is described fully, a more specific answer can be given

ID: 879066 • Letter: I

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if a student see an iron scoopula, instead of a plastic one, to add the unknown metal to the HCl solution, will it affect the calculated molar mass of the unknown metal? if so, how? justify your answer if a student see an iron scoopula, instead of a plastic one, to add the unknown metal to the HCl solution, will it affect the calculated molar mass of the unknown metal? if so, how? justify your answer if a student see an iron scoopula, instead of a plastic one, to add the unknown metal to the HCl solution, will it affect the calculated molar mass of the unknown metal? if so, how? justify your answer

Explanation / Answer

Suppose the metal is estimated by a gravimetric method.

If there is a specifc reagent which will precipitate only the metal ion (and not Iron) ,then the presence of ferrous ions will not affect the calculated mass of the metal.

If the actual experiment is described fully, a more specific answer can be given

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if a student see an iron scoopula, instead of a plastic one, to add the unknown

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