When making a solution of sodium hydroxide and water, a student weighed out an certain amount...
When making a solution of sodium hydroxide and water, a student weighed out an certain amount of sodium hydroxide pellets and dissolved them in an certain amount of water. However, the sodium hydroxide concentration of the resulting solution was lower than the concentration that the student thought they made. What was the problem?
Homework Answers
Sodium hydroxide when dry, absorbs moisture from the atmosphere easily. So, the taken sodium hydroxide is not pure. It contains some water. So, the actual mass of pure sodium hydroxide is less than that was dissolved. That's why, the resulting solution has less than expected concentration.
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