When the draining from the Buchner funnel has essentially stopped,add 5 mL of 6 mL HCl to the funnel and gently stir up the mixture with a spatula, taking care not to tear the filter paper.
When the draining from the Buchner funnel has essentially stopped,add 5 mL of 6 mL HCl to the funnel and gently stir up the mixture with a spatula, taking care not to tear the filter paper.