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Amines Acidification - Ammonia
If you add 15 drops of 6M HCl (a source of H+) to a mixture of 10 drops of 6 M ammonia solution and 1 dropperful of demineralized water, what would the following be:
1) pH
2) solubility
3) observed chemical reactions that would occur
If you were to re-basify the solution by adding 20 drops of 6 M NaOH (which is a source of OH-), what would the following be:
Using structural formula, how would you write the chemical reaction which explains how the product of the acidification reaction reacts with OH-.
How would this explain the changes in solubility?
Buffering Action of Proteins, We did this experiment in class but I want to see if the results seem reasonable and, if so, why they were not more varied.
If a sample of 0.190 grams of KCN is treated with an excess of HCL, calculate the amount of HCN formed, in grams.
How much energy (in kilojoules) is needed to heat 3.60 of ice from -14.5 to 26.0? The heat of fusion of water is 6.01, and the molar heat capacity is 36.6 for ice and 75.3 for liquid water.
each successive hydrogen is more easily substituted until the trihalo species is obtained. Explain
Calculate the number of moles of gas in a 3.24 L basketball inflated to a total pressure of 24.3 psi (pounds per square inch) at room temperature (25 degrees Celsius).
What is the difference between a strong acid and a weak acid. Calculate [H30+] in each aqueous solution at 25 C and classify each solution as acidic or basic one.
The best means of personal protection from radiation for emergency responders is the implementation of three basic principles: time, distance and shielding.
The density of aluminum is 2.70 g/cm3 and the density of chromium is 7.19 g/cm'.If equal masses of aluminum and chromium are transferred to equal volumes of water in separate graduated cylinders.
How much energy (heat) is released when 1.9 moles of H2 reacts with 0.7 moles of Cl2 to create HCl(g) if the ΔHrxn = -184.6 kJ.
A solution is prepared by adding some solid CaF2 to water and allowing the solid to come to equilibrium with the solution. The equilibrium constant for the reaction below is Kc = 3.9x10-11.
Calculate the mass of AgNO3(s) that must be added to 0.500 L of a solution of 0.154 M NaClsolution to precipitate ‘all' of the chloride ion. The ‘all' means that we want to add the same number of moles of silver ion.
4 KO2 + 2 H2O + 4 CO2 4 KHCO3 + 3 O2 1.86 moles of O2 were produced.Now, How many molecules of O2 does this number of moles represent.
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