cruzsophia29 cruzsophia29
  • 14-01-2022
  • Chemistry
contestada

0.25 mole of Mg contains how many atoms?
a 6.022 x 10^23 atoms
b 1.51 atoms
c 0.25 atoms
d 1.51 x 10^23 atoms

Respuesta :

rspill6
rspill6 rspill6
  • 14-01-2022

Answer:

5.57 x 10^24 atoms of Mg

Explanation:

1 mole = 6.023x10^23 items, by definition.  Atoms, in this case.

0.25 moles would be (0.25mole Mg )(6.023x10^23 atoms Mg/mole Mg) = 5.57 x 10^24 atoms of Mg

       

Answer Link

Otras preguntas

8+—3(6+—6a) help please
You are a school photographer taking individual and class pictures for 2 classes of 21 students each. On average, each individual picture takes 3 minutes and a
a machine uses 2.5 liters of fuel each hour it runs,its fuel tank was filled with 10 L  but 1.5 L have already been used how many more hours will the machine ru
witch is greater 4 meters or 450 centimeters
a machine uses 2.5 liters of fuel each hour it runs,its fuel tank was filled with 10 L  but 1.5 L have already been used how many more hours will the machine ru
Solve 7x-6 > 8 and 3x + 4> 22 for x. Could you please help solve this.
How do you write down 6.24 divided by 2.4 showing work?
30 girls and boys have planned for a picnic. there is a ratio of 3 girls to 7 boys how many boys are there?
5a+2a(5+—b)= please i need help
Which sentence does not contain any errors in comma usage?   A. Kangaroos travel in grou