Vocabulary
Lab
Ch 1
Ch 2
Ch 3
100

The mass of an empty vessel

Tare

100

Templates for lab reports and unknown reports can be found in the _____ tab on ______.

Files tab on Canvas

100

125 m is the equivalent of _______ nm. (In proper scientific notation)

1.25 x 1011 nm

100

Read the bottom of the ______ to record measurments on a buret.

Meniscus

100

The number of significant figures in 0.002030

4 significant figures

200

Nearness to the "truth"

Accuracy

200

Not allowed in lab 

Cell phones, Food, Drinks, etc.

200

This prefix is equal to 10-6

micro

200

The more accurate pipet between a Transfer Pipet or a Measuring Pipet

Transfer Pipet

200

Write the answer with correct signifcant figures:

(1.256-0.5)/(0.2315+0.0005)

3

300

Silly word for the number after the decimal point (0.530) in the answer to log 339 = 2.530.

Mantissa

300

Must bring your own to lab

Lab goggles and Lock

300

The equation for weight percent (wt%)

wt% = mass of solute / mass of solution x 100

300

When the volume of the liquid drops below the 50.0 mL line on a buret, the experimentor should _____  _______.

Start over

300

The measured uncertainty of the last digit is __.

+- 1
400

Type of experimental error that can be detected or corrected

Systematic Error

400
To detect a systematic error, a ______ can be run of the solvent with no analyte (solute).

Blank

400

Consider the equilibrium reaction

3A + 2B <> 5C

Multiply the reaction by 2 and write the new equilibrium constant.

K = [C]10 / ([A]6[B]4)

400

These two acids make up aqua regia

HCl:HNO3 (3:1 vol:vol)

400

Any two significant figure rules

1.All non-zero numbers are significant

2.Zeros between non-zero digits are significant

3.Trailing zeros to right of decimal are significant

4.Trailing zeros in a whole number with a decimal are significant

500

Occurs when your eye is not at the same height as the liquid in a buret

Parallax error

500

Proper method to dilute concentrated acid to prevent splashing

Add acid to water

500

According to Le Chatelier's Principle, this will happen when you decrease the concentration of a substance in an equilibrium reaction

The reaction will shift toward the subtance

500

This method is commonly used for weighing hygroscopic materials. 

Weighing by difference

500

Write the answer with the correct number of significant figures:

log (5.4x106) =

6.73

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