Concel
LEN
EXERCISE # S-I
CONCENTRATION TERMS
Calculate the molarity of the following solutions :
(a) 4g of caustic soda is dissolved in 200 mL of the solution.
5.3 g of anhydrous sodium carbonate is dissolved in 100 mL of solution
0.365 g of pure HCl gas is dissolved in 50 mL of solution.
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Explanation:
a.no of moles =4/40=1/40
volume =200/1000
molarity = 1/40/200/1000
=1×1000/40×20
=1000/800
=5/4
=1.25M
b.
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