linhkun2811
linhkun2811 linhkun2811
  • 23-01-2022
  • Chemistry
contestada

There are ________ mol of bromide ions in 0.700 L of a 0.400 M solution of AlBr

Respuesta :

haiderali920687
haiderali920687 haiderali920687
  • 23-01-2022

Answer:

The number of moles of AlBr3 = Molarity × Volume

= 0.400 × 0.700

= 0.28 moles

1 mole of AlBr3 gives 3 moles of Br- ions

That is

AlBr3 = Al3+ + 3Br-

Therefore, 0.045 moles of AlBr3 will yield 3 × 0.28 = 0.84 moles

Thus; they are 0.84 moles of bromide ions

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