1.which of the following amount of solution contain 20.0 g of solute?
A.100.0 g of 20.0 % (m/m) NaCl solution.
B.500.0 g of 4.00% (m/m) NaCl solution.
C.200.0 h of 10.0 % ( m/m)NaCl solution.
D.All of the above
C.200.0 h of 10.0 % ( m/m)NaCl solution.
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