Conversion Math
Atomic Structure and Symbolism
Chemical Formulas
Mass-Mole-Number Conversions
100

The formula for density using mass and volume

What is d=m/v?

100

Similarities and differences of protons and neutrons similar

What is subatomic particles that reside in nucleus and approx. same mass? What is protons charged (+) and neutrons are neutral?

100

Units of molar mass?

What is g/mol?

100

Avogadro's number

What is 6.022 x 1023?

200

The density of aluminum if 27.6 cm3 has a mass of 74.6 g

What is 2.70 g/cm3?

200

The atomic symbol of an ion with a 1+ charge, atomic number 55, and mass number 133

What is 133Cs+?

200

Units of molecular mass

What is amu?

200

The relationships between moles, mass, and molar mass and their units

What is mol = g/(g/mol)?

Stella draw the triangle

300

The mass of 6.00 cm3 of mercury, density = 13.5939 g/cm3

What is 81.6 g?

300

The isotope given 15 protons, 15 electrons, 16 neutrons

What is 3115P?

300

The simplest whole-number ratio of atoms of each element in a compound

What is empirical formula?
300

Number of atoms in 23.4 g of carbon?

What is 1.17 x 1024?

400

The volume of 3.28 g gaseous hydrogen, density = 0.089 g/L?

What is 37 L?

400

The element with the atomic number 53, mass number 127, charge of 1-

What is iodine?

400

The empirical formula of caffeine, C8H10N4O2

What is C4H5N2O?

400

Moles of 5.42 x 1023 atoms of carbon

What is 0.9 mol of carbon?

500

The mass of a graphite cube measuring 0.06 m per one side (density of graphite is 2.26 g/mL)

What is 488.16 g?

500

Average atomic mass of bromine when bromine isotopes 79Br and 81Br. Masses are 78.9183 and 80.9163 amu, respectively, and abundances 50.69% and 49.31%, respectively.

What is 79.90 amu?

500
Formula for molecular mass

What is sum of (# of element atoms x atomic mass of element)?

500

Number of atoms in 30.1 g of hydrogen(s)

What is 1.79 x 1025?