A student performed three CH₂Cl₂ layer titrations in Part 2 using a standard sodium thiosulfate solution with a concentration of 0.01152 M. They reported the following measurements:

	Determination #1	Determination #2	Determination #3
Final CH2Cl2 Layer Burette Reading	31.12 mL	38.12 mL	45.00 mL
Initial CH2Cl2 Layer Burette Reading	24.21 mL	31.12 mL	38.12 mL
Final Thiosulfate Burette Reading	31.52 mL	35.64 mL	44.99 mL
Initial Thiosulfate Burette Reading	2.43 mL	9.39 mL	19.31 mL

How many moles of thiosulfate did they use in their second titration (ie. their second determination)? Report your answer to the correct number of significant figures and only report the numerical value (no units).