Dimethylglyoxime, DMG, Is an Organic Compound Used to Test for Aqueous

question 46

Multiple Choice

Dimethylglyoxime, DMG, is an organic compound used to test for aqueous nickel(II) ions. A solution prepared by dissolving 65.0 g of DMG in 375 g of ethanol boils at 80.3°C. What is the molar mass of DMG? K_b = 1.22°C/m, boiling point of pure ethanol = 78.5°C

• A)44.1 g/mol
• B)65.8 g/mol
• C)117 g/mol
• D)131.6 g/mol
• E)553 g/mol

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