Ch 2 Tools of the Trade

Question 1

sig fig rules (analog tools)

Answer 1

one more digit than the division on the tool

Question 2

sig fig rules (digital tools)

Answer 2

left most digit that fluctuates

Question 3

parallax error (error in measuring tools)

Answer 3

when object is viewed from a position that
is not at a right angle to the object

Question 4

temperature effect (error in measuring tools)

Answer 4

Both liquids and glass expand and contract with
changing temperature. Volumetric glassware is calibrated at 20ºC