Definitions
A unit of measure used in chemistry to count particles
What are moles?
A unit that means 10-9
What is nano?
The symbol for Tin.
What is Sn?
The number of atoms in 5.81 g of Magnesium Sulfate (MgSO4).
What are 1.75 x 1023 atoms?
The number of neutrons in 167N.
What is 9?
The definition of Chemistry.
What is the study of matter and its transformation?
The prefix "pico-" stands for this.
What is 10-12?
The symbol Pb indicates this element.
What is Lead?
The frequency of radiation given of by a sodium lamp with a wavelength of 589 nm.
What is 5.088 x 1014 s-1?
The molar mass of Ammonium Nitrate (NH4NO3) to 4 significant figures.
What is 80.04g/mol?
What is Empirical Formula?
This prefix stands for 109.
What is giga?
The element with 2 protons and 2 neutrons.
What is Helium?
The energy required to ionize a Hydrogen atom from n=3.
What is 2.42 x 10-19 J?
The mass in amu of one molecule of a molecular compound.
What is molecular mass?
The measure of cycles per second.
What is frequency?
The prefix for 10-2.
The symbol K stands for this element.
What is Potassium?
The mass of 9.823 x 1024 molecules of Sodium Borohydride (NaBH4).
What is 6.182 x 102 g?
The number of particles in 1 mole.
What is Avogadro's number?
(Will also accept What is 6.022x1023?)
A quantum of electromagnetic radiation.
What is a photon?
The prefix that means 1000.
What is kilo-?
This is the symbol for Mercury.
What is Hg?
The energy of a photon with a wavelength of 640 nm.
What is 3.10 x 10-19 J?
The energy of the photon released when a Hydrogen atom falls from n=5 to n=2.
What is -4.57 x 10-19 J?