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. What is emulsion?
· Explain what emulsion is without using specific compounds
· Give an example of emulsion using specific compounds and an illustration
· List references (ex. website/book/etc.). If an external illustration is used, make sure to reference that as well.
Write a brief summary of at least 2 common uses for a compound encountered in lab. The summary should also include:
· 3 properties (density, Molar Mass, etc.) associated with the compound
· 1-3 hazards associated with that compound
· The 2 common uses can be in any area (industry, research, etc.)
A method for determining the quantity of dissolved oxygen in natural waters requires a series of redox reactions. Balance the following chemical equations in that series under the conditions indicated
an organic substance has an enthalpy of vaporization of 29.0 kjmol. the compound has a vapor pressure of 524 mm hg at
Normal gastric juice has a pH of about 2. Assuming that gastric juice is primarily aqueous HCl, what is the HCl concentration.
The air in the ducts flows at 5.0 m/s, find the width of the ducts. (b) How big would the ducts need to be if the owner wanted the air to flow at 1.0 m/s
Problem- A solution is made by dissolving 0.45 mole of NaF in enough water to give a final volume of 300.0 mL. What is the molarity of the solution
You have produced a gas which you suspect to be hydrogen. Describe how you might confirm your suspicion. State exactly what you would do and what would you expect to observe.
When the following equation is balanced using the smallest possible integers, what is the number in front of the O2? C3H8(g) + O2(g) ---> CO2(g) + H2O(l)
At what temperature is the molar volume of an ideal gas equal to 22.4L, if the pressure of the gas is 2.5 atm
the concentration of carbon in an iron-carbon alloy is 0.12 wt. given that the densities of c and fe are 2.25 and 7.87
Explain the differences in values of the ligand field splittings (Delta = DeltaO or DeltaT for the cobalt complexes below): [Co(NH3)6]3+ ----> Delta = 22,900 cm-1, [Co(H20)6]3+ -----> Delta = 18,200 cm-1, [Co(NH3)6]2+ -----> Delta = 10,200 cm-1 [C..
We prepare a buffer by adding 0.4640 mol HNO3 to 0.5528 L of a solution containing 2.061 M trimethylamine [(CH3)3N, Kb = 6.500x10-5]. What is the pH of this buffer
a strip of magnesium of mass 15g is dropped into a beaker of dilutenbsp hydrochloric acid. calculate the work done in j
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