How many moles of KCl are in 27.5 g of KCl?
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Answer:
◇ n= ms ÷ Mwt
Explanation:
☆ Number of mols = mass of sample ÷ molar mass
☆ Molar mass of KCl is 39 + 35.5 = 74.5g
☆ So n = 27.5÷74.5 = 0.369 mol
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