alex1245john alex1245john
  • 21-09-2020
  • Chemistry
contestada

How many Aluminum ions are in 4.5 moles of aluminum oxide?

Respuesta :

puppy2899 puppy2899
  • 21-09-2020
hat means that 12 g of Al2
2
O3
3
contain 12 g / 101.96 g mol−1
−
1
= 0.118 moles of Al2
2
O3
3
.

Each Al2
2
O3
3
formula unit contains two Al3+
3
+
ions, so there are 2 x 0.118 mol = 0.235 moles of Al3+
3
+
ions.

If you want an actual number, you can multiply that by Avogadro’s constant: 0.235 mol x 6.022 x 1023
23
mol−1
−
1
= 1.42 x 1023
23
ions.
Answer Link

Otras preguntas

crystal is 12 years old and alexa is 6 years old. If crystal runs 100 yards how far does alexa run? How far do they run altogether
name a mineral that has cleavage
What is the frequency of an electromagnetic wave with a wavelength of 20cm ?
If u inform someone of the different layers in the atmosphere what type of speech is it
Levi saved 3/5 of the amount he needs to buy a 75 dollar video game. he earns 7.50 per hour working at the pizza shopin town how many hours will he need to work
What is Afrocentrism
which was not a way that technology helped pioneers turn the great plains into productive farmland
Temperature is a measure of _____ of molecules.
Me Scruggs got some money for his birthday. He spent 1/5 of it on dog treats. Then he divided the remainder equally among his favorite charities. What fraction
Paint costs $29.95 per gallon Nikki needs 12.25 yards project how much will need to spend on paint remembered you run to the nearest Penny