When NaCl is dissolved in hot water containing bromothymol blue (anacid/base ind

Question

When NaCl is dissolved in hot water containing bromothymol blue (anacid/base indicator), the solution remains green (neutral). Theelectrical conductivity of the water is measured before and afterthe salt is added. How will the conductivity of the water changewhen NaCl is dissolved in the water?

Increasesignificantly.
Decreasesignificantly.
Stay thesame.

Which one of the following statements best explains yourprediction?

NaCl(s) ismelted by the heat of the water, and the Na+ andCl ions become mobile.
NaCl reactswith water to form NaOH and HCl in equal amounts.
The neutralNaCl molecules are dissociated into Na+ andCl ions when electrical current passes throughthe solution.
NaCl isneutral (not an acid or a base), therefore its solution does notconduct electricity.
NaCl(s) isdissolved by the water, and the Na+ andCl ions become mobile.

Explanation / Answer

When NaCl is dissolved in hot water containing bromothymol blue(an acid/base indicator), the solution remains green (neutral). Theelectrical conductivity of the water is measured before and afterthe salt is added. How will the conductivity of the water changewhen NaCl is dissolved in the water?

it will increase significantly

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