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Chemistry
Lindsay Dyer
27 March, 23:51
How many moles are in 123.0grams of KCIO4?
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Dawn
28 March, 01:20
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Number of moles = mass / molar mass
= 123 g / 242.0111 g/mol
= 0.508 mol
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Miranda Ray
28 March, 04:30
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first ... lets calculate the molar mass of KClO4
39+35.5+16*4
39+35.5+64
=138.5g/mol
so that mean every mole have 138.5g ... got that?
138.5g = 1mole
123g=x mole
123/138.5=x
x=0.888mol
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