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 =
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Number of moles =
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Number of moles of CaCl₂ = 0.699moles
Learn more;
mole calculation brainly.com/question/13064292
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Runoff (Hope this helped)
they pair up with other bases to make up the rungs of the DNA ladder
Answer:
the melting point of aluminum is 660 degrees Celsius.
Answer:
he average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance