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Question- Calculate the relative amounts of H2PO4- and HPO4(2-) that should be combined to produce a phosphate buffer at pH7. (pKa= 6.86 and molarity= 0.1 M)
I am need of complete solution for this problem please help- me out to get right solution
Describe any important differences between benzopinacol and benzopinacolone in the IR, H NMR spectra.
Draw the structure of 18-crown-6, a compound that is commonly used to bind certain metal ions
How many grams of oxalic acid dihydrate are needed to react with 38.56 mL of a .2500M sodium hydroxide solution
For an octahedral complex of each of the following metal ion, determine the number of unpaired electrons for both high spin and low spin configurations. In some cases, both may be the same.
Question- Relate the difference in water solubility between ethanamide and benzamide in light of the similarities and differences in their molecular structures
entropies of atom combination to determine if any of the following reactions have an equilibrium constant greater than 1. Find the reaction with the greatest equilibrium constant. Find the reaction with the smallest equilibrium constant.
A certain bottled water lists a calcium concentration of 55 mg/L. What is its calcium concentration expressed in parts per million (ppm)
a tablet of vitamin c was analyzed to determine whether it did in fact contain as the manufacturer claimed 1 g of the
For each of the following pairs, indicate which substance possesses the larger standard entropy. (BE SURE to circle one in each pair). a. 1 mol of He (g) in 3 L @ 298 K OR 1 mol He (g) in 3 L @ 400 K
How much energy is released during the complete combustion of 433 grams of cyclopropane
The concentration of A was 0.30 M after 23 seconds. What was the initial concentration of A. Assume the stoichiometric coefficient for A is 1.
what is the molar mass of the unknown liquid in g/mole?
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