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Describe how you would prepare 150.0 mL of a pH = 5.00 buffer solution from a solution of 0.200-M aniline, C6H5NH2, a weak base, and a solution of 0.100-M hydrochloric acid. take the pKa of aniline to be 9.13.
The following reaction takes place in a sealed 40.0-L container at a temp of 120 degrees C 4NH 3(G) + 5 O2 (g) --> 4NO (g) + 6H2O (G)
Find ratio of the atomic mass of Silicon to Hydrogen if every 100g of SiH4 contains 87.45g of Si and 12.55g of H.
Calculate the mass in grams of iodine (I2) that will react completely with 29.1 g of aluminum (Al) to form aluminum iodide (AlI3).
What is the molarity of a solution if 4.50 g NaF is dissolved in enough water to make 250.0 mL of solution?
A line in the emission spectrum of an atom occurs at a wavelength of 560 nm. What is the energy difference between the two energy levels involved in this emission.
The rate constant for a certain reaction is = 5.70×10-3 s^-1. If the initial reactant concentration was 0.650 M, what will the concentration be after 14.0 minutes.
Draw all stereoisomers having molecular formula C6H12 that contain one double bond and give the IUPAC name for each compound.
What is the pH of a buffer prepared by adding 180 mL of 0.100 M NaOH to 200 mL of 0.100 M acetic acid? (Ka for CH3COOH = 1.8 x 10-5)
A tablet of Vitamin C changed color at 23.7 mLs of Iodine. how do you determine how much vitamin c is in the tablet.
A solution is prepared by dissolving 14.7 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 11.00 mL sample of this stock solution is added to 56.00 mL of water.
Choose two functional groups and for each group find a household product that contains the group. Then explain the action of the product in terms of the intermolecular forces that these groups impart to the molecule.
Hydrogen phosphate buffer, Buffer solutions have the unique ability to resist changes in PH when an acid or base is added to them. One important buffer system that helps to maintain blood pH at a constant value of 7.4 is the hydrogen phosphate buf..
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