Question

Determine the number of moles in 4.21 x 10^23 molecules of CaCI2?????

Answer 1

Explanation:

Given parameters:

Number of molecules = 4.21 x 10²³ molecules

Unknown parameters:

Number of moles

Solution:

A mole can be defined as the amount of a substance that contains the avogadro's number of particles i.e 6.02 x 10²³

  To find the number of moles:

          Number of moles = $\frac{number of molecules }{[tex]6.02 x 10^{23}$}[/tex]

  Number of moles =  $\frac{4.21 x 10[tex]^{23}$ }{$6.02 x 10^{23}$}[/tex]

Number of moles of CaCl₂ = 0.699moles

Learn more;

mole calculation brainly.com/question/13064292

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