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Alenkinab [10]
3 years ago
10

How much heat is required to melt 26.0 g of ice at its melting point?

Chemistry
1 answer:
MAXImum [283]3 years ago
8 0

Answer:

Heat required to melt 26.0 g of ice at its melting point is 8.66 kJ.

Explanation:

Number of moles of water in 26 g of water: 26× \frac{1}{18.02} moles

                                                                      =1.44 moles

The enthalpy change for melting ice is called the entlaphy of fusion. Its value is 6.02 kj/mol.

we have relation as:

                                           q = n × ΔH

where:

q  = heat

n  = moles

Δ H  = enthalpy

So calculating we get,

                                        q= 1.44*6.02 kJ

                                        q= 8.66 kJ

We require 8.66 kJ of energy to melt 26g of ice.

                       

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sveta [45]

Answer:

E) C₂H₄(g) + H₂(g) ⇒ C₂H₆(g)

Explanation:

Which ONE of the following is an oxidation–reduction reaction?

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8 0
3 years ago
What volume (in L) of a 1.25 M
sleet_krkn [62]

Answer:

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Explanation:

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455/ 1000

= 0.455 L

Now make the substitution

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Rearrange to make V1 the subject

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