How many moles of atoms are in 50.15 g of mercury (atomic mass 200.59 amu)?

Asked by Mmccoy, Last updated: Apr 12, 2024

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Answered Dec 14, 2020

The correct answer to this question is 0.2500 mol
Formula to calculate moles:
Moles = mass ÷ molar mass (n=m/M)
Mass = 50.15g
Atomic mass: 200.59 amu
Moles = 50.15g/200.59
= 0.2500 mol.
Therefore, there are 0.2500 mol of atoms are in 50.15 g of mercury with an atomic mass of 200.59 amu

L. Brett, Sales Manager, MBA, Detroit

Answered Mar 28, 2019

The correct answer to this question is C, 0.2500 mol. To solve this you, you need to know the mathematic equation. The atomic weight of mercury is 200.59. If one mole is equal to the number of grams that is the assigned atomic weight, you have to do the math to determine the mol. 1 moles of mercury has a mass of 200.59 from the periodic table.

Then you must divide 50.15 g by the atomic mass. Thus, 50.15g * 1mol/200.59g = 0.25 mol. A mole is unit to determine and measure the molecular mass. Therefore, the correct answer to this question is C, 0.2500 mol.