Q31 of 75 Page 81

Calculate the mass of each of the following:

2 moles of potassium bromide

Given: Number of moles = 2


Atomic mass of KBr = 39 + 80 = 119g/mol


To find out the mass of potassium bromide, apply the formula given:



⇒


⇒ Mass = 2mol × 119g/mol


⇒ Mass = 238g


Thus, the mass of potassium bromide is 238g.


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