Please help with 3b

dilution below was performed from an initial concentration of 7 M stock. The volume above each arrow indicates the volume being transferred to the next tube. The volume listed at the bottom-right of each tube indicates the volume of diluent added to that tube. 2 ml 400. UL 0.5 mL 50 ULL stock Tube 1 Tube 2 Tube 3 Tube 4 1. um 8 ml 0.6 ml 9.5 mL 0.15 mL 7.0 M rin a) (2pt) What is the concentration of tube 1 (include your units)? CV , - C IV , = C 2 Uz ( Tio m) ( 2 mi ) = (x) (comb ) ( X = 1.um b) (2pt) What is the concentration of tube 3 (include your units)? X 2) (1. 4 m ) (0. 4ML ) = (x )(10ML) (x = . 056= 0. Im 3 ) ( GIm ) (0. Sml ) = (x ) (10) c) (1pt) Which individual micropipette should you use to transfer over the 50 ul volume from Tube 3 into Tube 4? (circle one micropipette below) P200 P1000 P5000 P20 d) (1pt) For the micropipette answer you circled above, fill in the boxes below for how you should set this micropipette to measure a 50 uL volume