Moles
Sig Figs
General Definitions
Polyatomic Ions
Elements
100

What is the numerical value of Avogadro's Number?

6.022 x 1023

100

How many sig figs does 12300000000 have?

3

100

What is molar mass?

grams/moles

100
SO42-​​​

Sulfate

100

Pt

Platinum

200

If I want to go from moles to grams what conversion would I use?

Molar Mass

200

How many sig figs does 1654.0300 have?

8

200

What is the most electronegative element?

Fluorine

200

SCN-

Thiocyanate

200

In

Indium

300

If I want to go from molecules to moles what conversion would I use?

Avogadro's Number

300

If I divide or multiply two numbers how many sig figs will the answer have?

As many as the number with the smallest amount of sig figs.

300

What is electronegativity?

Electronegativity is the tendency for an atom of a given chemical element to attract shared electrons when forming a chemical bond.

300

NH4+

Ammonium

300

Tl

Thallium

400

Where would I find the conversion for moles of one substance to another?

The balanced chemical equation

400

If I add or subtract two numbers, how many sig figs will the answer have?

The answer should have the same number of decimal places as the limiting term

400

What is a limiting reactant?

The limiting reagent in a chemical reaction is a reactant that is totally consumed when the chemical reaction is completed.

400
Cr2O72-

Dichromate

400

V

Vanadium

500

If I want to find the limiting reactant what conversions would I make?

Convert moles of one substance to moles of another substance. Whichever has the least moles is the limiting reactant.

500

Why are unit conversions not counted for in terms of sig figs when calculating a number?

Unit conversions are exact while sig figs are measured values; sig figs only apply to measured values.
500

What is percent yield?

Percent yield is the percent ratio of actual yield to the theoretical yield. You can also just tell me the formula so (actual yield/theoretical yield) x 100%

500

HCO3-

Hydrogen Carbonate or Bicarbonate

500

Zr

Zirconium

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