2.1-2.3 Mixtures Solutions and Solvent (Experimental Techniques) 

The ________ is a ratio and therefore has no units.

________ is heated in a round bottom flask.

________ is a mixture of several chemicals and water.

________ cools the steams to a pure liquid and it drops into the beaker.

________= distance moved by compound ÷ distance moved by solvent.

A(n) ________ is one that evaporated easily this is a sign that the forces between its particles are weak so ________ have low boiling points too.

A(n) ________ condense on the beads in the fractional column.

________ is the solute, water is the solvent.

________ are collected by filtering the solution.

It is also used to separate a(n) ________.

________ will only allow small liquid particles to pass through in the filtrate.

A(n) ________ has a definite, sharp, melting point and boiling point.

The vapour passes through the condenser, where it cools and condenses, turning into ________ which is collected in a beaker.

A(n) ________ gets more soluble as the temperature rises.

________ are too large to pass through the filter paper so will stay behind as a residue.

The beads are heated to the boiling point of the ________, so that substance being removed can not condense on the beads.

________ is more soluble in hot water than in cold water.

________ is placed in a filter funnel above another beaker.

Calculating the ________ allows chemists to identify unknown substances because it can be compared with Rfvalues of known substances under the same conditions.

When you mix sugar and water, the sugar seems to disappear

You can check melting and boiling points

Used to separate a dissolved solid from a solution, when the solid is more soluble in hot solvent than in cold (e.g

place a drop of black ink in the center of some filter paper

Now drop water onto the ink spot, one drop at a time

suppose there are three rings yellow, red

ethanol has a boiling point of 78 ºC and water of 100 ºC