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What ratio [CH3NH3+]/[CH3NH2] is needed to prepare a buffer solution with a pH of 8.60 from methylamine, CH3NH2, and methylammonium chloride, CH3NH3Cl? Kb of CH3NH2 = 3.7 10-4.
how much energy in kilojoules is needed to heat 4.00 of ice from -12.5 to 32.0? the heat of fusion of water is 6.01 and
How many different types (sets) of hydrogens are there in 2,2-dimethylpentane
An 0.758 mol sample of neon gas at a temperature of 18.0 oC is found to occupy a volume of 24.0 liters. The pressure of this gas sample is. answer in mm Hg please.
The following questions concerning electrolysis of molten sodium hydride (NaH), the products are Na(?) and H2(g). Which of teh following statement(s) is (are) correct
When no single electronic formula can be drawn for a stable molecule so as to maintain the octet rule and still fit the observed properties
Compound A is unchanged when treated with dilute base, but treatment of A with concentrated NaOH and heat gives a new compound B (C10H19N) that decolorizes Br2 in CCl4. Compound B is identical to the product obtained from the reaction sequence bel..
One significant breakthrough in the study of the immune system was the development of monoclonal antibodies. State what these are, how they are made
what is the hybridization of the central atom in
How many grams of sodium phosphate Na3PO4(163.9 g/mol) are contained in 205. mL of a sodium phosphate solution that is 0.194 M in sodium ion Na+?
What is the chemical equation of an oxalate ion reacting with a permanganate ion and what is the mole ratio
Given total pressure and equilibrium constant, calculate equilibrium partial pressure, The heterogeneous equilibrium process
Calculate the potential of the following cell and indicate whether the reaction is expected to be spontaneous. Cr + 3 Ag+ ---> Cr3+ + 3Ag
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