A concentrated perchloric acid solution has a density of 1.67 g/mL at 25°C and is 11.7 M. What is the percent by mass of HCIO 4 in the solution? O A. 60.2% HCIO4 by mass O B. 70.4% HCIO4 by mass O C. 1.42% HCIO4 by mass O D.0.699% HCIO4 by mass O E. 0.702% HCIO4 by mass

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