Question

#1. Determine the uncertainty in each measurement. I have the answers but I need to learn how this was solved. Answers are: (a: +0.1cm, b:+0.01s, c: +0.001 L, d: +100L, e: +0.0001g, f: +0.1 * 10^-3m³.

a) 0.4cm b) 35.00s

c) 10.600 L d) 2100L

e) 0.0490 g f) 6.9 x 10^-3 m³

#2. Convert 1.8 quarts to cubic centimeters.

Useful information: 1mL = 1cm³ 1L = 1.057qt

Answer 1

. Decianal place a) 0.4 cm The uncertainity always contain one significant figure. Deu'anal place in uncertainity valece ie same as the measurement value. 0.4 has uncertainitup of 10,1 hence, +0. limans b) 35.00 Lt has two digits after delimab. So, concertainity = 0.01s Arcs o 10.6002 The measurement has 3 digits of the devinale place. So, un certoinit' valuie >> 0.001 Late d) 21002 It can be written as 2.100 x 10²L O sol 3 digits) 2100 can be expressed to uncertainity value as +100L

Le 0.0490 gf It has a digits after decimas. So, uncertainity = 0.0001 gf f) 6.9 x 10m3 1 diget after decimal place 0.1 x10 mmüncestownily values & 1.8 quartz to cm? (1.057 quarts 2 11 ) given 1 quarts: 1 57 1.8 quarts y 1 X1.8 L 1.057 I ! » 1.7029 L Now, 1.70 29 L to mL 12 ÷ 1000 mL 1.7029L2 1.70 29 x 1000 2 1702.9 mL Also, (1 ml=1cm) hence 1.8 quarts to - 1702.9 m²

Hope this helps you