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Phosphate systems form essential buffers in organisms. Calculate the pH of a buffer made by dissolving 0.80mol of NaOH in 0.50L of 1.0M H3PO4.
How many valence electrons are there for the POCl3 molecule? Draw a reasonable Lewis structure for POCl3. Assign formal charges for the atoms in your Lewis structure. Draw a second legitimate resonance contributor for POCl3. Assign formal charges ..
Creatine is a by-product of muscle metabolism, and creatinine levels in the body are known to be a fairly realiable indicator of kidney function.
Protein Quantification why is it more useful to plot absorbance vs. weight units(mg/ml) instead of absorbance vs. molar concentration?
The crystal lattice enegery for LiBr(s) is -818.6 kJ/mol at 25 degrees Celcius. The hydration energy of the ions of LiBr is -867.4 kJ/mole at 25 degrees Celcious (for infinite dilution).
Exactly 10.2 mL of water at 31.0 degrees celsius are added to a hot iron skillet. All of the water is converted into steam at 100 celsius. the mass of the pan is 1.05kg and the molar heat capacity of iron is 25.19 J/(molXC).
describe an incident fire spill explosion etc you have experienced or research one on the internet professional journal
The most prominent line in the spectrum of Neon is found at 865.438 nm. Other lines are found at 837.761 nm, 878.062 nm, 873.375 nm, and 1885.387 nm.
A series of lines in the spectrum of atomic hydrogen has a maximum wavelength of 7459.9 nm and then progresses to lower wavelengths. What is the wavelength of the 2nd line in the series in nm
Solid aluminum metal and diatomic chlorine gas react spontaneously to form a solid product. Give the balanced chemical equation (including phases) that describes this reaction.
Tabulate the viscosity and density of water between the temperatures of 10 degrees and 80 degrees, in one degree increments in the 20 to 35 degrees interval and in 5 degrees increments outside this interval
a photon has a wave lenght of 501 nm . calculate the energy of the photon in joules . enter your answer in scientific notation
A buffer solution contains 0.386 M NH4Cl and 0.316 M NH3 (ammonia). Determine the pH change when 0.064 mol HBr is added to 1.00 L of the buffer
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