Chemistryyyyyyy Unit 1 AHHHHHHHHHHHHHH poop

What is the formula for molar mass

Molar mass = Mass (g) / Moles (mol)

What is the formula for density

Density (g/cm2)) = Mass (g) / Volume (cm3)

How do you convert Celsius to Kelvin

Add 273.15

How do you convert Farenheit to Celsius

Subtract 32 and then multiply by (5/9)

How u convert Celsius to Farenhaiiiituh

Multiply by (9/5) and add 32 to dat mutha

How many sig figs in 1.030

4 sf u dummy smh

How many sig figs in 50.0

3 sf

how many siggy figglies in 5300

2 sf bc we dgaf ab da 0 if no decimal follow bruh

how many sigma figmas ar in da numba 5300.

4 sf becuzada deci

Howe manyy sig figz in 3040

Thwee shig figgszz

Sig fig multiply rule

Number of sf is the same as number with fewest sig figs

Sig fig add rule

Number of sf is the same as the number with least decimal places brehtha.

how many cm in an inch

2.54 cm

Law of mass conservation

The total mass of the substances doesn’t change in a chemical reaction

Law of definite (c0nStAnt) proportions

A PuRe compound always hos the same elements in the same fixed proportion, no matter where it be from or how much it be (h20 is alwas 1 H, 2 O)

Law of multiple proportions

the same 2 elements can combine in different whole number ratios to make different compounds (Carbon and Oxygen can make CO or CO2)

where are nonmetals

on the right of the metalloids and hydrogen

where are metals

you shat find them to the left of thy metalloids

Where are the metalloids

the stair step down in the middle/right of the table: boron, silicon, germanium, arsenic, antimony, tellurium

Ammonium

NH4 (1+ charge)

Hydroxide

OH (1-)

Nitrate

NO3 (1-)

Nitrite

NO2 (1-)

Sulfate

SO4 (2-)

Sulfite

SO3 (2-)

Name NaCl (Metal + Nonmetal)

Sodium Chloride

Name FeO (multiple charge transition metal)

Iron (II) Oxide …(oxygen’s charge is 2-)

Name KNO3 (cation + anion, more than 2 elements)

Potassium Nitrate …(good luck lol, but name the cation [positive], then the anion [negative])

Name HCl (H+ non-oxyacid)

Hydrochloric acid

Name H2SO4 (H+ oxyacid)

Hydrogen Sulfite

Name H2SO3 (H+oxyaciiiiiddd)

Sulfurous Acid

Name N2O5 (Covalent Compound)

Dinitrogen Pentoxide

What is da number that good ole mr AVOGADRO came up wit?

6.022 × 10²³ = 1 mol …(can be use for changing an ‘entity’ [molecule, atom…] into a mol)