ChemTeam

About this original series

The ChemTeam provides study resources in all standard topics for students in high school and Advanced Placement chemistry.

Category
Learning
# Episodes
203 episodes
Rating
TV-Y

Episodes of ChemTeam

- Play
  
  Convert m/s to mi/hr using dimensional analysis
  
  You can check the answer to this problem using Google calculator: https://encrypted.google.com/search?q=convert+1.94+m%2Fs+to+miles%2Fhour&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
  - Release date
    
    Apr 18, 2011
  - Runtime
    
    02:37
- Play
  
  Cancelling units of the gas velocity equation
  
  The equation in question is √(3RT/M). All that is considered are the units on R, T and M in showing how the unit m/s (meters per second) arises.
  - Release date
    
    Apr 12, 2011
  - Runtime
    
    02:07
- Play
  
  Determine the empirical formula IV
  
  In which we are given the masses of calcium, sulfur and oxygen in a compound and then asked to calculate the formula of the compound.
  - Release date
    
    Apr 12, 2011
  - Runtime
    
    02:12
- Play
  
  Determine the empirical formula III
  
  The grams of aluminum and chlorine that make of a compound are given and the empirical formula is asked for.
  - Release date
    
    Mar 10, 2011
  - Runtime
    
    01:53
- Play
  
  Beta Decay II
  
  Three beta decay equations are given, the first two were shown in the video titled 'Beta Decay I' without any answers. A more modern symbol for the antineutrino replaces the zeros to the left of the Greek letter nu with a right-subscripted lower-case e. The e symbolizes that this is an electron antineutrino, as opposed to muon or tau antineutrinos. Cobalt-60 was the isotope used in the discovery of the nonconservation of parity: http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/betaex.html
  - Release date
    
    Jan 13, 2011
  - Runtime
    
    02:19
- Play
  
  Beta Decay I
  
  In which two beta decay equations are written and two others are given without an answer. The answers are provided in the video titled "Beta Decay II." A more modern symbol for the antineutrino replaces the zeros to the left of the Greek letter nu with a right-subscripted lower-case e. The e symbolizes that this is an electron antineutrino, as opposed to muon or tau antineutrinos.
  - Release date
    
    Jan 13, 2011
  - Runtime
    
    02:46
- Play
  
  Alpha Decay II
  
  Three balanced alpha decay equations are shown. The first two were given without an answer in the video titled "Alpha Decay I."
  - Release date
    
    Jan 13, 2011
  - Runtime
    
    02:16
- Play
  
  Alpha Decay I
  
  Two balanced alpha decay equations are written and two additional isotope are given as problems with no answer. See Alpha Decay II for the answers.
  - Release date
    
    Jan 13, 2011
  - Runtime
    
    02:27
- Play
  
  Calculate mass of a sample with same number of a...
  
  Sorry for the long title. This problem gives you grams of a first sample and asks you to calculate the grams of a second sample which has the same number of atoms as the first sample. The key point: when the moles of the two samples are equal, the nmber of atoms are also equal.
  - Release date
    
    Jan 11, 2011
  - Runtime
    
    01:54
- Play
  
  Radioactive Decay
  
  However, this problem uses third-life rather than half-life. In doing the video, I meant to write the fraction one-third in two different steps of the solution and BOTH times I wrote one-half, then corrected it. I guess that comes from having done sooooo many half-life problems over the years.
  - Release date
    
    Jan 11, 2011
  - Runtime
    
    02:26