2 years ago

What happened to the number of moles in a sample that originally occupied 500mL with 2.50 moles and then occupied 750mL?

2 answers:

7 0

Either you have added an extra half of the # of moles or you changed the condition (lower the pressure or increase the temp.)

ANEK [815]2 years ago

3 0

Answer: The number of moles that initially occupied a 250ml container remains the same when it occupied 750ml container but they are freer because the 750ml container is bigger and has more space. So the gases now occupied more space and their movement is less curtailed unlike when they were in 250ml container

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lesya692 [45]

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2 years ago

Based on lewis structure analysis, what is the formal charge of the central atom in clf3

MArishka [77]

Formal Charge is calculated as, Lewis structure is attached below,

Formal Charge = [# of valence electrons] - [electrons in lone pairs + 1/2 the number of bonding electrons]

# of valence electrons of Cl = 7

electrons in lone pairs = 4

number of bonding electrons = 6

Formal Charge = [7] - [4 + 6/2]

Formal Charge = [7] - [4 + 3]

Formal Charge = [7] - [7]

Formal Charge = 0

Result:
Formal charge on Cl in ClF₃ is zero.