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Q1. Why do oils and fats melt over a range of temperatures?
Q2. What do the melting temperatures of the fats and oils suggest about their fatty acid composition?
Q3. How could you use this information to make a reduced-fat chicken stock or beef stock?
Question- A 1.0M Na2SO4 solution is slowly added to 10.0 mL of a solution that is 0.20M in Ca2+ and 0.30M in Ag+. How much Na2SO4 solution must be added to initiate the precipitation
What formula of the percipitate formed? and what do you observe upon the addition of dilute HNO3 and what equillibrium has been disturbed? would you expect lead chloride to dissolve in dilute HNO3? Explain
Calculate the average translational kinetic energy (sometimes just called average kinetic energy) for one mole of gas at 385 K.
the wall of a spherical tank of 1-m diameter contains an exothermic chemical reaction and is at 200oc when the ambient
How many grams of solid aluminum sulfide can be prepared by the reaction of 11.4 g of aluminum and 17.0 g of sulfur
A galvanic cell is prepared by immersing a strip of nickel metal into an aqueous 1M NiSO4 and a strip of silver metal into aqueous 0.100M AgNO3. The two solutions are separated by a porous barrier.
Henderson- Hasselbalch mayn't always be successful at predicting pH. First, define some theoretical instances when HH may not be valuable. Secondly, using acidic acid model pKa
a solution of ethanol c2h5oh in water is prepared by dissolving 77.0 ml of ethanol density 0.79 gcm3 in enough water
Tin carbonate solid is treated with nitric acid to dissolve tin carbonate to give tin nitrate, water and carbon dioxide. a) Write a balanced equation for the reaction.
Suppose 50.0 mL of HCl of unknown concentration is titrated to neutrality with 90.0 mL of 6.50 M NaOH Compute molarity of HCl
Question- Consider a single photon with a wavelength of a frequency of and an energy of E. What is the wavelength, frequency, and energy of a pulse of light containing 100 of these photons
Suppose that a solution is 4.5×10?2 in calcium chloride and 9.5×10?2 in magnesium nitrate. What mass of sodium phosphate would have to be added to 1.5 of this solution to completely eliminate the hard water ions. Assume complete reaction.
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