Electrolytic Properties and Molarity When a compound is dissolved in water, the

Question

Electrolytic Properties and Molarity When a compound is dissolved in water, the resulting solution is either an electrolyte or a nonelectrolyte. The solution of an electrolyte has the ability to conduct an electric current. A strong eletrolyte dissociates or ionizes almost completely into ons, whereas a weak electrolyte undergoes only limited ionization or dissociation. The solution of a nonelectrolyte does not oonduct a curent because few, if any, lons are present in the solution. The electrical conductivity of a solution can easily be measured with a meter or a light bulb. The total ion concentration of any solution is determined by both the type and the concentration of solute. Part A The electrical conductivities of the following 0.100 M solutions were measured in an apparatus that contained a light bulb as the indicator of conductivity. Rank the solutions in order of decreasing intensity (brightest to dimmest) of the light bulb. Rank from brightest to dimmest bulb. To rank items as equivalent, overlap them. You did not open hints for this part ANSWER HF CHOH KI AI(NO) Brightest Dimmest Formula-unit concentration versus ion concentration When you are given a concentration for a compound, such as 1 M NaCI, indicates the number of moles of formula units

Explanation / Answer

Based on the conductivity , the bulb indicator brightness order is as follows,

brightness is directly proportional to conductivity.

More the number of ions for an electrolyte, higher will be the conductivity.

Brightest                                        Dimmest

Al(NO3)3   >       KI    >        HF      > CH3OH

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