Verified answer

Mole to Mass Conversion

Answer:

1.)  8.2 x mol of Ne = ____ g Ne

    Solution:

    20.18 g/ 1 mol x 8.2 x mol  = 0.1655 g

There are 0.1655 g Ne in a liter of air.

2.) 10.3 x mol of Xe = ___ g Xe

    Solution:  

    131.29 g/ 1 mol x 10.3 x mol = 13.5229 g

There are 13.5229 g of Xe in 2 liters of air.

Explanation:

Mole is a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles. It is just like a counting quantity just like dozen, pair, or ream.

To convert moles to mass, we multiply the number of moles of the element by the element's molar mass which is expressed in g/mol. The molar mass of any substance is the mass in grams of one mole of representative particles of that substance. The mass can be found in the periodic table of elements and is expressed as 1 mole = mass of an element. For instance, for the element neon, 1 mole = 20.18 g. This can be used as a conversion factor thus it can be expressed as or . This conversion factor can also be used to convert mass to moles.

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