27. the density of nickel is 8.91 g/cm3. how large a cube, in cm3, would contain 2.00 x 10^24 atoms of nickel? use dimensional analysis to solve and show all work including units on every number! (5 points)

Answer : The volume of the cube is,

Solution : Given,

Density of nickel =

Number of nickel atoms =

Molar mass of nickel = 58.7 g/mole

First we have to calculate the moles of nickel.

As, atoms form 1 mole of nickel

So, atoms form moles of nickel

The moles of nickel = 3.321 moles

Now we have to calculate the mass of nickel.

The mass of nickel = 194.94 g

Now we have to calculate the volume of nickel.

Therefore, the volume of the cube is,

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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