Question

Which one of the samples contains the most molecules? *

4 points

(a) 1 mol of CO2(g)

(b) 1 mol of UF6(g)

(c) 1 mol of CH3COCH3(l)

(d) all contain the same number of molecules

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Answer 1

Answer:

d

Explanation:

Since each mole has 6.022×10^23 molecules and mole of each option is same

Answer 2

All the samples contain the same number of molecules.

• As we know that the value of 1 mole is equal to $6.023$ × $10^{23}$ molecules.
• The number of moles of a compound can be calculated by dividing the given mass of the compound by the molar mass of the compound.
• The number of molecules present in a compound depends upon the number of moles of the compound.
• As it is visible that all the compounds have the same number of moles that is equal to 1.
• And, the value of 1 mole is $6.023$ × $10^{23}$ molecules. So, the number of molecules present in all the three compounds is the same which is equal to $6.023$ × $10^{23}$ molecules.

Hence, d is the correct option.