What is back suction?
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Answered by
47
Back suction is when the water is sucked into the funnel due to the lower pressure created there when HCl dissolves in water.
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Anonymous:
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Answered by
43
Back suction is caused when the rate of absorption exceeds the rate of production of HCl or Ammonia gas. This causes a low pressure in the flask resulting in the water to be pulled into the flask
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wlcm
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