Calculate the mass of Na2CO3 needed to prepare a 15.00 mM solution with a volume of 500.0 mL.(Na2CO3 = 105.9888 g/mol)
A) 1) 258 g
B) 3) 180 g
C) 0) 7949 g
D) 7) 076 g
E) 0) 0141 g
Correct Answer:
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