Exam 1 Flashcards
Dilution equation?
C1V1=C2V2
where C = concentration and V = volume
nuclear format
A X
Z
A = mass # (protons + neutrons)
Z = atomic # (protons)
X = chemical symbol
solvent
the chemical in the greatest abundance within a solution
solute
the chemical(s) dissolved in a solvent within a solution
molarity (M)
moles of solute/liters of solution
w/v
weight per volume
grams per mL % OR grams per liter x 100 %
percent yield
(actual yield/theoretical yield) * 100
what is the relationship between wavelength, frequency, and the speed of light?
λv=c
λ = wavelength, v = frequency, and c = speed of light
what is the equation for the energy of a photon in J (Joules)?
E(photon) = hv(photon)
Ephoton = hc/λ(photon)
h= Planck’s constant, c= speed of light, v= frequency, and λ= wavelength
what are the units of wavelength (λ)?
meters (m) or nanometers (nm)
what are the units of frequency (v)?
s^-1 or Hertz (Hz)
rank the following in order of increasing wavelength/decreasing energy
gamma rays
ultraviolet light
microwaves
radio waves
X-rays
visible light
infrared light
gamma rays (shortest λ)
X-rays
ultraviolet light
visible light
infrared light
microwaves
radio waves (longest λ)
what is the DeBroglie equation?
hint: wavelength in terms of mass and velocity
λ = h/(mv)
λ=wavelength (in m), h=Planck’s constant, m=mass (kg), v=velocity (m/s)
Heisenberg uncertainty principle
ΔxΔp≥h/(4π)
meaning: position and momentum of a particle cannot both be fully known
principle quantum number
n = energy level of electron/orbital
positive integer
