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Question 4.13: Calculating the Volume of Reactant Solution Needed Consider ...

Calculating the Volume of Reactant Solution Needed

Consider the reaction of sulfuric acid, H_2SO_4, with sodium hydroxide, NaOH.

H_2SO_4(aq)  +  2NaOH(aq)  →  2H_2O(l)  +  Na_2SO_4(aq)

Suppose a beaker contains 35.0 mL of 0.175 M H_2SO_4. How many milliliters of 0.250 M NaOH must be added to react completely with the sulfuric acid?


You convert from 35.0 mL (or 35.0 × 10^{-3} L) H_2SO_4 solution to moles H_2SO_4 (using the molarity of H_2SO_4), then to moles NaOH (from the chemical equation). Finally, you convert this to volume of NaOH solution (using the molarity of NaOH).

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