Why should we wait for 30 seconds after filling the burette before titration?
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Answer:
to know the exact volume of titrant in aburrete because sometimes there was some bubles
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Why we should wait for 30 seconds after filling burette before titration:
After filling the burette with acid, we should have to wait for 30s because we fill the burette a bit higher than the zero mark because when we fill the burette, they are some bubbles are present so we wait for 30 seconds until the bubble disappear and liquid level to zero mark point.
Hope it helped................
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