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Make a 2.00L of a sodium phosphate buffer pH 5.05 and another 2.00L sodium phosphate buffer of 7.12 pH using the Henderson-Hasselbach equation, determine how much and which salts you will use if you add the correct amount of salts, sometimes the pH can still vary. Why is that? Other than temperature change?
So we did a preparation of t-pentyl Chloride experiment in class the other day using t-pentyl alcohol, HCL, Aqueous sodium Bicarbonate, and calcium chloride as the drying agent.
Calculate the pH of 0.100 L of a buffer solution that is 0.25 M in HF and 0.50 in NaF. What is the change in pH on addition of the following? a) 0.002 mol of HNO3 b) 0.004 mol of KOH
4.00 mL if 0.100M t-BuCl are mixed with 4.00mL of 0.0100 M NaOH and 2.00 mL of Distilled water. Calculate the initial Molarity of t-BuCl. How many moles of t-BuCl will have reacted when bromophenol blue changes colors
in 1996 physicists created an anti-atom of hydrogen. in such an atom which is the antimatter equivalent of an ordinary
If E(ethanol) and E(octane) are the energies per gram of fuel produced by ethanol and octane, respectively, calculations show that E(octane)/E(ethanol) is? [the standard molar enthalpy of formation of octane is -249.9 kJ/mol]
a 10.0 l gas cylinder has been filled with 7.40 moles of gas. you measure the pressure to be 3.90 atm. what is the
Ammonia decomposes totally to hydrogen and nitrogen gas. If the total pressure of the reaction vessel at the end of the reaction is 250 mm Hg, explain what is the partial pressure of nitrogen gas
Identify the type of interactions involved in each of the following processes taking place during the dissolution of sodium chloride (NaCl) in water.
The compound is involved in the citric acid cycle for energy production within the cell. However, the compound is unstable and slowly decomposes spontaneously. Draw the decomposition products.
When sodium carbonate dissolves in water, the carbonate ion CO3^2- acts as a base. write a balanced equation for the reaction of the carbonate ion with water.
Depict structures of the organic starting material as well as product formed for the reduction of vanillin acetate (4-formyl-2-methoxyphenyl acetate C10H10O4) by sodium borodeuteride (NaBD4) reduction.
Hydrogen cyanide (and organic nitriles, which contain the cyano group) can be catalytically reduced with hydrogen to form amines
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