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For questions relating to water (H₂O), specifically its structure, properties, and uses in chemistry. For questions not about water but rather about solutions in water, use tags [aqueous-solution] or [solubility] instead.

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Why does copper sulphate (CuSO4) in water increase surface tension?

The first coordination shell of either ions is filled with water, forming electrostatic/polar bonds between the water molecules and the ions. … Because the water molecule are forming bonds with charged ions, their polarity is slightly increased compared to a regular water molecule. …
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Why does copper sulphate (CuSO4) in water increase surface tension?

What the copper sulphate is doing is being a whole bunch of extra links connecting the hydrogen atoms of water molecules together. … Using a pipette, drop water into a bottle cap until liquid is flat with the top. Fill a pipette to 3 mL. …
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