Question

1) What is the objective of this experiment? ( name of the experiment chemical statistics)

A) To convert from the English to the metric system using dimensional analysis.

B) All are correct.

C) To understand the use of significant figures and uncertainty in data recording and calculations.

D) To calculate the percent error and average deviation of data points.

2) You've gotten the results: 2.3, 2.5, 2.2 & 2.1; the true value is 3.1. Are your results Accurate and/or Precise?

A) Precise.

B) Neither Accurate nor Precise.

C) Accurate.

D) Accurate and Precise.

3) How many significant digits are in the number:

4.500060 ?

A) 3

B) 6

C) 0

D) 7

4) How many significant digits does the following operation have?

(40,200.0 * 0.000240) - 2.778

A) 4

B) 0

C) 6

D) 3

5) Convert 4.96 gallons to milliliters if 946 mL = 1 qt.

Answer 1

乙 5) 41°11 ση