A 20% (W/v) Solution of Sodium Hydrogen Citrate, Na₂C₆H₆O₇, Which Also

question 56

Multiple Choice

A 2.0% (w/v) solution of sodium hydrogen citrate, Na₂C₆H₆O₇, which also contains 2.5% (w/v) of dextrose, C₆H₁₂O₆, is used as an anticoagulant for blood which is to be used for transfusions. What is the molarity of the sodium hydrogen citrate in the solution?

• A)0.085 M
• B)0.19 M
• C)0.53 M
• D)1.2 M
• E)1.3 M

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Definitions:

Joseph Stalin

The leader of the Soviet Union from the mid-1920s until his death in 1953, known for his totalitarian rule, implementation of socialism, and the significant human cost of his policies.

Soviet Union

A socialist state that existed from 1922 to 1991, comprising Russia and several other republics, and was a major world power during the 20th century.

Lenin's Death

Refers to the death of Vladimir Lenin in 1924, which marked the end of his leadership of the Soviet Union and initiated a struggle for power.

Tsarina Alexandra

The last Empress of Russia, wife of Tsar Nicholas II, known for her influence at court and connection to the mystic Rasputin.