Question

1. Estimate as accurately and precisely as possible the liquid volumes in the following two pictures (graduated cylinder on the left, titration buret on the right). 4 pts ml 50 40 40 I 14 30 30 15 10 16

Answer 1

Solution is given below. Please go through it. Hope it will help you.
Q. 1. (i) graduated cylinder = 37 mL cil) titration buretle = 15.4 mL Q.2: significant figures: 2 0.0045 9003 7.51x104 630,000 TO ТІП 2 9.222 33:16 6 + 96.6 + 138.988 but least decimal place = 1 SO answer should be 139.0 (Rounding off to one decimal place) 8637 -11.9115 14.3985 but least decimal place = 2 so answer should be 14.40 (rounding off to two decimal place)

(Denision) 8900 +75.80 117.4142 division , we consider minimum 75.80 = 4 So 117:4142 should be written in 2 But in case of significant figures in original Number 8900 = 2 significant figures significant figures answer should be in 2 significant figures 2 significant figures (2 significant figures) In case of multiplication also, we consider significant figures in original significant figines significant figures significant figure (2 significant figure) 120 0.022 X0.0022 x 603 minimum 0.022 = 2 0.0022 ) 2 603 V 0.022 X 0.0022 X 603 0.029 0-0 29185