Guess that atom
A ground state atom with electron configuration:
1s22s22p63s23p64s1
What is potassium (k)
How many moles of Cl- are in 1.0 moles of CaCl2
What is 2.0 moles of Cl-
This is the highest energy visible color:
What is violet
You run a sample of 30M red dye through the absorption spectrometer. You measure λmax to be 497.6nm. What is the absorbance of the red dye?
What is 2.01e4
Suppose you have a solution of 0.2 M sodium chloride (NaCl). What volume of this solution would you need to mix with water to prepare 500 mL of a 0.05 M NaCl solution?
v=125mL
This atom when stripped of all its electrons, becomes synonymous with a proton
what is hydrogen
A beers law standard equation is given as follows:
y=93021x+0.00001
This represents the absorbance:
What is y
what is red
A blue laser pointer emits 6.0mW of radiation with a wavelength of 470nm. How many photons are emitted in 2min. of operation?
1.7e13 photons
You have 0.81 moles of TiCl4, how many grams of chloride do you have?
What is 114.87 grams of Cl-
This ion has an electron configuration of 1s22s22p6
what is Na+
You can find the energy of a photon using this mathematical formula:
what is E=hv, if given the wavelength then c=lambda(v) where v is velocity and lambda is wavelength, c and h are constants.
When an electron goes from an energy state of n=4 to n=3, energy is:
what is emitted
How many electrons fit on an orbital on the 3d shell?
How many grams are there in 0.06 moles of acrylamide (C3H5NO)
what is 4.26 grams
This atom has 12 neutrons in ground state
what is magnesium
What are the units of molar absorptivity in beers law?
L/Cm*mol
A dye that appears blue is absorbing wavelengths in which color?
what is orange/yellow
What is 3.068 mL of water
How many moles of glyphosate (C3H8NO5P) is 0.06 grams.
what is 0.00035 moles
This atom is the second of the alkali metals, its also used in toothpaste
What is Na
What is the molar mass of tryptophan (C11H12N2O2)
204.225 g/mol
This color corresponds with a wave which has a frequency of 7.0e14
wavelength: 430nm, color is violet/indigo
What are the units of molar mass?
what is g/mol
y=mx+b can be fit to a beers law equation on a given graph, what qualitative and quantitative values do each variable stand for?
y=absorbance
m=molar absorptivity
x=concentration
b=y intercept, significant of error