How many significant figures in each of the following: A. 60 s = 1 min
B. 900. meters =
C. 8.006 x 10^2 gram=
D. 0.074 meters=
E.9,000,000km =

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m