Answer to Question #331494 in Chemistry for TeteV

Question

Indicate which of the following are determinate and which are indeterminate errors.

(a) A hygroscopic sample is not dried in the oven prior to weighing.

(b) A buret reading of 28.43 ml. is written down as 28.34 ml..

(c) The bottom of the meniscus in a buret is estimated to be at the zero-milliliter mark but

in fact is very slightly below this mark.

(d) The liquid in a 10-ml. TD (to deliver) pipet is blown out by mouth.

(e) The rest point of a meter needle, oscillating due to some desktop vibration, is estimated incorrectly.