How many g of NaCL (molecular weight= 58.5g mole) would you dissolve in water to make a 0.5 M NaCl solution with 500 ml final volume?
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Answer:
Molarity= 0.2M .
Explanation:
Mass of NaCl⟶5.85g
Number of moles of NaCl=
58.5
5.85
=0.1
Volume ⟶0.5 litre
Molarity=
Volume(ml)
Numberofmoles
×1000
=
0.5
0.1
Molarity= 0.2M .
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