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2 years ago

Which factor is generally responsible for high melting points?

1 answer:

3 0

The factor that is generally responsible for higher melting point is intermolecular forces. The compounds that are covalent in nature are made of molecules rather than ions. It has been seen that some of the covalent compounds have polar molecules at one end, due to which the one end has more electronegative force than the other. The electrostatic force that is bounding the compound is the main cause of higher melting point of this compound. So it is true that with the increase of polarity of a compound creates higher melting point. .. hope I helped

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Is honey a heterogeneous or homogeneous mixture?

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3 years ago

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Answer:

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3 years ago

Why does naphthol react with sodium hydroxide? why does ethanol not react to the extent that naphthol does with sodium hydroxide

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Answer:

Conjugate base of naphthol is highly stable but conjugate base of ethanol is unstable.

Explanation:

Naphthol gives acid base reaction with NaOH where naphthol acts as an acid and NaOH as a base.

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Ethanol is not so reactive towards NaOH because the ethoxide ion is highly unstable due to lack of delocalization of negative charge on oxygen atom.

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2 years ago

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3 years ago

Calculate the mass of sucrose necessary to make a 5% by mass sucrose solution if the solution contains 50.0 ml of distilled wate

Lelechka [254]

Answer:

2.6 g

Explanation:

Percent concentration = 5%

Volume of water = 50ml

Since 1ml of water = 1g of water

Mass of water= 50g

Let the mass of sucrose be x

Mass% = mass of solute/mass of solute + mass of solvent × 100

5= x/x+ 50 ×100

5/100 = x/x + 50

0.05 = x/x + 50

0.05(x + 50) = x

0.05x + 2.5 = x

2.5 = x - 0.05x

2.5 = 0.95x

x= 2.5/0.95

x=2.6 g

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2 years ago