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Bingel [31]
4 years ago
10

Calculate the number of total atoms in 195 grams of Ni(OH)2. Use 6.022x10^23mol-1 for Avogadro’a number

Chemistry
1 answer:
olga2289 [7]4 years ago
5 0

195 g×

1 mol

Ni(OH)

2

92.71

g Ni(OH)

2

×

6.022×

10

23

formula units

mol

=1.27×

10

24

formula units of Ni(OH)

2

Since there are  

5

atoms—one  

Ni

atom, two atoms of  

O

and two atoms of  

H

—in each formula unit of  

Ni(OH)

2

,

we multiply the number of formula units calculated above by  

5

:

1.27×

10

24

formula units of Ni(OH)

2

×

5 atoms

formula unit of Ni(OH)

2

=6.33× 10^ 24  total atoms  

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