Answers created by Truong-Son N.

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• How do you find the exact value of #tan pi/3#?
  
• What is a sample problem about finding the sum of a geometric sequence?
  
• How to do this equilibrium derivation? (I'll post an answer showing the problem)
  
• How do you find the derivative of #sinx/x#?
  
• What are some examples of molar volumes of a gases?
  
• What is a harmonic oscillator for which the frequency is not constant?
  
• What is an example of a nonideal oscillator?
  
• Why are equilibrium constants dimensionless?
  
• What does infrared spectroscopy tell you?
  
• What are the steps to name aromatic hydrocarbons?
  
• Why can enthalpy not be measured directly?
  
• How do you divide radicals with variables?
  
• Is 50 a perfect square?
  
• What is there in the derivation of the Taylor/Maclaurin series for #sin(x)# that determines if the series assumes #x# is radians or degrees?
  
• How does sound interact with matter?
  
• How can synthetic division be used to factor a polynomial?
  
• What is a tangent line?
  
• How do you solve #3(x+3)^(3/4)= 81#?
  
• How do you locate the discontinuities of the function #y = ln(tan(x)2)#?
  
• Is there an easy way to memorize the derivatives of inverse trigonometric functions?
  
• How do you solve # sqrt(-10x - 4) = 2x#?
  
• How do you factor a "perfect square trinomial" #16x^2+48x+36 #?
  
• How do you use differentiation to find a power series representation for #1/(6+x)^2#?
  
• What is #lim_(x->0) xlnx - x^2#?
  
• How do you find the antiderivative for #1/2x^5#?
  
• How do you find the equation for the tangent line for #y=1/x# at #x=1#?
  
• In a speed vs. time graph where a curve is depicted, why does the slope of a tangent line drawn to the curve represent the instantaneous speed, and not the average speed?
  
• Can ammonia complex with copper or chromium?
  
• How do you use the square roots of 144 and 169 to estimate the square root of 154?
  
• What are some common mistakes students make with acid catalyzed hydro-alkoxy additions?
  
• What is the first law of thermodynamics and how is it related to conservation of energy?
  
• How may I read NMR splitting?
  
• How can I do line charts in Excel?
  
• Using the equation #(d[NO_3^(-)])/(dt) = k_1[NH_4^(-)]# calculate the predicted half-life of #"NH"_4^(-)# if the initial concentration is 2600 ppm?
  
• Where can I find electronegativities of lithium, carbon, and fluorine? How do they relate to the tendency to obtain a noble gas configuration?
  
• What does "trans" isomer mean in cyclohexane ring?
  
• What does "cis" isomer mean in cyclohexane ring?
  
• What are the rules to identify the major resonance structure?
  
• What are acid catalyzed hydro-alkoxy additions used for?
  
• Is an acid catalyzed hydro-alkoxy addition the same as an acid-catalyzed alkoxyation?
  
• Why do we call now a substituent or a group in organic chemistry “R” instead of a radical?
  
• What can I do to prepare for organic chemistry lab?
  
• Why does polarization occur?
  
• The probability envelope for an electron is called?
  
• What physical or chemical changes occur in a flame?
  
• How can I calculate molality of pure water?