Chem Final Notes

What is the ammonium formula?

NH4

What is the charge of the ammonium ion?

\+1

What is the ammonia formula?

NH3

What is the acetate formula?

CH3CO2

What is the charge of the acetate ion?

\-1

What is the carbonate formula?

CO3

What is the charge of the carbonate ion?

2-

What is the cyanide formula?

CN

What is the hydroxide formula?

OH

What is the charge on the cyanide ion?

\-1

What is the charge of the hydroxide ion?

\-1

What is the bromate formula?

BrO3

What is the charge of the bromate ion?

\-1

What is the hydronium formula?

H3O

What is the charge of the hydronium ion?

\+1

What is the nitrate formula?

NO3

What is the charge of the nitrate ion?

\-1

What is the nitrite formula?

NO2

What is the charge of the nitrite ion?

\-1

What is the sulfate formula?

SO4

What is the charge of the sulfate ion?

2-

What is the sulfite formula?

SO3

What is the charge of the sulfite ion?

2-

What is the phosphite formula?

PO3

What is the charge of the phosphite ion?

3-

What is the peroxide formula?

O2

What is the charge of the peroxide ion?

2-

What is the chromate formula?

CrO4

What is the charge of the chromate ion?

2-

What is the phosphate formula?

PO4

What is the charge of the phosphate ion?

3-

What is the perchlorate formula?

ClO4

What is the charge of the perchlorate ion?

\-1

What is the chlorate formula?

ClO3

What is the charge of the chlorate ion?

\-1

What is the chlorite formula?

ClO2

What is the charge of the chlorite ion?

\-1

What is the dichromate formula?

Cr2O7

What is the charge of the dichromate ion?

2-

What is the hydrogen carbonate formula?

HCO3

What is the charge of the hydrogen carbonate ion?

\-1

What is the permanganate formula?

KMnO4

What is the charge of the permanganate ion?

\-1

What is the iodate formula?

IO3

What is the charge of the iodate ion?

\-1

What is the hypobromite formula?

BrO

What is the charge of the hypobromite ion?

\-1

How many grams are in a kilogram?

1000

How many decigrams in a gram?

10

How many centigrams are in a gram?

100

How many milligrams are in a gram?

1000

How many micrograms are in a gram?

1,000,000

How many nanograms are in a gram?

1,000,000,000

How many grams in a gigagram?

1,000,000,000,000

How many grams in a tetragram?

1,000,000,000,000,000

Tetragram symbol?

Tg

Gigagram symbol?

Gg

Kilogram symbol?

kg

Centigram symbol?

cg

Decigram symbol?

dg

Milligram symbol?

mg

Microgram symbol?

ug

Nanogram symbol?

ng

What is the bass unit for mass?

kg

What is the bass unit for length?

m

What is the base unit for time?

s

What is the base unit for temperature?

K

What is the conversion for inches to centimeters?

1 in = 2.54 cm

What is the conversion for milliliters to cubic centimeters?

1 mL = 1 cm^3

Are trailing zeros after a decimal point significant figures?

yes

Are leading zeros significant figures?

no

What is the electron geometry if there are 2 electron groups?

linear

What is the molecular shape if there are 2 electron & 2 bonding groups?

linear

What is the electron geometry if there are 3 electron groups?

Trigonal planar

What is the molecular shape if there are 3 electron & 3 bonding groups?

Trigonal planar

What is the molecular shape if there are 3 electron & 2 bonding groups?

bent

What is the electron geometry if there are 4 electron groups?

tetrahedral

What is the molecular shape if there are 4 electron & 4 bonding groups?

tetrahedral

What is the molecular shape if there are 4 electron & 3 bonding groups?

Trigonal pyramidal

What is the molecular shape if there are 3 electron & 2 bonding groups?

bent

What is the bond angle for 2 electron & 2 bonding groups?

180

What is the bond angle for 3 electron & 2 bonding groups?

﹤120

What is the bond angle for 3 electron & 3 bonding groups?

120

What is the bond angle for 4 electron & 4 bonding groups?

109\.5

What is the bond angle for 4 electron & 3 bonding groups?

﹤109.5

What is the bond angle for 4 electron & 2 bonding groups?

﹤﹤109.5

How does electronegativity increase on the periodic table?

By going up & towards the right

How does atomic size increase on the periodic table?

By going down & to the left

How does metallic character increase on the periodic table?

By going down & to the left

How does ionization energy increase on the periodic table?

By going up & towards the right

What makes a molecule nonpolar?

Symmetric molecules, no unshared electrons

What makes a molecule polar?

Asymmetric, containing lone pairs on a central atom/different electronegativities bonded

What is the standard temperature in ideal gas equations?

298 K

What is kinetic molecular theory?

Gas particles are in constant, random motion, do not interact, particle volume is very small compared to container volume, kinetic energy of gas particles is proportional to temperature

What is Boyle's law?

Pressure increases, volume decreases

What is Charles’ law?

Volume increases, temperature increases

How can Boyle’s & Charles’ laws be combined?

Increase in pressure equals a decrease in volume and temperature

What are electrolytes?

Substances that conduct electric current because of dissociating into IONS in solution

What is a bronsted-lowry base?

base that accepts a proton

what is the formula for converting fahrenheit to celsius?

(°F − 32) × 5/9 = 0°C