Answer:
14.45 mL
Explanation:
The rule apply for the addition and subtraction for significant digits is :
The least precise number present after the decimal point determines the number of significant figures in the answer.
Initial Burette reading = 0.75 mL ( 2 significant digits)
Final Burette reading = 15.20 mL ( 4 significant digits)
Liquid dispensed = 15.20 mL - 0.75 mL = 14.45 mL ( Answer to two decimal places )
