28 g Cao(s) dissolved in pure water to give 1 L of
solution: What will be the molarity of solution?
0.15
0.5
0.35
0.8
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Answer:
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Answer:
0.5 M
Explanation:
Molarity= moles of solute /liters of solution
No of moles=Given weight / Molecular mass
Given Weight = 28 g
Molecular mass of Ca=40
Molecular mass of O = 16
Molecular mass of CaO=40+16=56g
No of moles=28/56=1/2
Volume =1 L
Molarity=(1/2)/1=1/2
=0.5 M
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