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2 years ago

Which compound will conduct electricity when it is dissolved in water?

Chemistry

1 answer:

Marta_Voda [28]2 years ago

4 0

<h3>Answer:</h3>

CuSO₄

<h3>Explanation:</h3>

The compounds that conduct electricity when dissolved in water are known as electrolytes.
Electrolytes may be defined as compounds that conduct electricity either in aqueous or molten form, due to the presence of mobile ions.
Electrolytes are therefore decomposed by passing an electric current through them.
Examples of electrolytes include CuSO₄, NaOH, NaCl, etc.
Non-electrolytes, on the other hand, do not conduct electricity and cannot be decomposed through electrolysis.

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3 years ago

At 25.0°c, a solution has a concentration of 3.179 m and a density of 1.260 g/ml. the density of the solution at 50.0°c is 1.249

oksano4ka [1.4K]

Answer: -

3.151 M

Explanation: -

Let the volume of the solution be 1000 mL.

At 25.0 °C, Density = 1.260 g/ mL

Mass of the solution = Density x volume

= 1.260 g / mL x 1000 mL

= 1260 g

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Number of moles present per 1000 mL = 3.179 mol

Strength of the solution in g / mol

= 1260 g / 3.179 mol = 396.35 g / mol (at 25.0 °C)

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Mass of the solution = density x volume = 1.249 g / mL x 1000 mL

= 1249 g.

Number of moles present in 1249 g = Mass of the solution / Strength in g /mol

= $\frac{1249 g}{396.35 g/mol}$

= 3.151 moles.

So 3.151 moles is present in 1000 mL at 50.0 °C

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