Prelab 518

Prelab 518 - KEY to PRELAB 518: Separating the Components...

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Page 1 of 2 KEY to PRELAB 518: Separating the Components of a Ternary Mixture NOTE: sections in italics are provided as additional information only and are not deemed to be part of the “correct” answer for the purposes of correcting your pre-lab assignment. 1. 3M HCl is a toxic and corrosive substance. Always pour acids into water or aqueous solutions, never the reverse. 2. a. decant – to pour off the liquid from a solid-liquid mixture; the solid has settled to the bottom of the container. This technique is often used to shorten filtration times. It is also used when pouring wine so that any sediment that has formed during storage remains at the bottom of the bottle and does not end up in the wine glass. b. filter – to separate a solid-liquid mixture by pouring it through a porous material, such as filter paper. The liquid portion passes through the paper and the solid remains behind on the surface of the paper (in the filter if using a funnel). c. extract – removal of one component of a mixture by the addition of a liquid that
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Prelab 518 - KEY to PRELAB 518: Separating the Components...

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