Question

Calculate the mass of 20.0 moles of sc
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Answer 1

900g

Step-by-step explanation:

Given parameters:

Number of moles of Sc = 20moles

Unknown:

Mass of Sc = ?

Solution:

To find the mass of the scandium given, we use the expression below:

Mass = Number of moles x molar mass

Molar mass of Sc = 45g/mol

So;

Mass of Sc = 20 x 45 = 900g