Asked by David
Explain how to make a 1 Normal solution H3PO4.
Answers
Answered by
DrBob222
Technically, you can't make a solution with a known normality unless you know the reaction in which the H3PO4 will be used. Using the simple case,
normality = number equivalents/liter solution.
Therefore, one dissolves 1 equivalent (molar mass/3) grams in some water, add water to make a FINAL volume of 1,000 mL and that will be 1 N. You may not want 1 L of solution; therefore, half of that in 500 mL or 1/4 of that in 250 mL will be 1 N.
normality = number equivalents/liter solution.
Therefore, one dissolves 1 equivalent (molar mass/3) grams in some water, add water to make a FINAL volume of 1,000 mL and that will be 1 N. You may not want 1 L of solution; therefore, half of that in 500 mL or 1/4 of that in 250 mL will be 1 N.
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