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These questions are from an experiment: Fats, soaps and detergents- A saponification reaction 1. The triglyceride and the glycerol differ with respect to polarity and H-bonding. Discuss these two differences in terms of their chemical structures. We made our own soap and added cottonseed oil, CaCl2, FeCl3, and HCl ( to change solution to ph 4) to see their effects. When I added the CaCl2 a precipitate formed 2. Write an equation for the formation of any precipitate. When i added the HCl, the solution became cloudy 3. Write an equation for any changes observed.
Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is Zn2+(aq)+2e??Zn(s)
Include constitutional isomers expect those with C-C double or triple bonds. For each constitutional isomer identify the functional group and identify if they are stereoisomers other than conformers
If a 220mg piece of gold (density =19.32 ) is hammered into a sheet measuring 2.11.0 , what is the average thickness of the sheet in meters.
why is it important to standardize NaOH solution instead of taking an accurate and diluting it in a volumetric
A 0.75-L bottle is cleaned, dried, and closed in a room where the air is 22 degrees C and 44% relative humidity (that is, the water vapor in the air is 0.44 of the equilibrium vapor pressure at 22 degrees C
Calculate the pH of the solution after the addition of 30ml of 0.1M NaOH. Draw the structure of the form is His predominating in solution at neutral pH.
Initially, .500 atm of H2 and .500 atm I 2 are mixed in an evacuated 1.0 L flask. The system is allowed to come to equilibrium and it is found tocontain 0.318 atm HI. What is the equilibrium partial pressure of I2 for the reaction shown below?
Generate the equilibrium constant expressions for the following reaction. Calculate the numerical value for
a) H2 (g) + Br2 (g) â?" 2 HBr (g) + heat [0.513] [0.62] [0.346] b) N2O4 (g) + heat â?" 2 NO2 (g) [0.0325] [0.022] c) NH4SH (g) â?" NH3 (g) + H2S (g) + heat [0.027] [0.0234] [0.209] Calculate Ke for the following (equilibrium concentrations give..
In an experiment using a temperature probe, is there a way to estimate the heat absorbed by the temperature probe? Explain how.
Choose an acid below and determine how much of the acid in mL that you need to add to 0.800 g of the sodium salt of its conjugate base to prepare a buffer with a pH of 3.8. 3.0 M formic acid
How would a calculated specific heat be affected if there is less water in the calorimeter that the value used in a calculation. Would it be higher, lower or unaffected
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