A 250 ML Aliquot of a Solution Containing Fe²⁺, Prepared During

question 43

Multiple Choice

A 25.0 mL aliquot of a solution containing Fe²⁺, prepared during an assay of a pyrite ore, was titrated to a faint purple endpoint by 32.2 mL of 0.020 M KMnO₄. What was the molarity of the Fe²⁺ solution? [The permanganate was reduced to Mn²⁺.]

• A) 0.13 M
• B) 0.19 M
• C) 0.26 M
• D) 0.31 M
• E) 0.47 M

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WAN

An acronym for Wide Area Network, it's a telecommunications network that extends over a large geographic area for the purpose of computer networking.

MAN

Metropolitan Area Network, a network that spans a city or campus, providing connectivity to a large number of computers in a large geographical area.

Fiber-optic Cable

A type of cable made of glass fibers that transmits data at high speeds using light signals.