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Compute the concentration of all species in a 0.050 M selenous acid solution. These species include [H3O], and [H2SeO3]. For selenous acid Kal=2.3x10-3 and Ka2=5.3x10-9.
How many moles of O are needed to combine with 0.289 mole of C to form the following compounds, CO and CO2
A 25.00mL portion of this solution required 17.56mL of hydrochloric acid(0.1396 mol/L) for complete neutralization. Calculate the percent of sodium carbonate in the mixture.
Determine the pH of a 0.432 M sodium acetate (NaC2H302) solutions
benzene c6h6 burns in air to produce carbon dioxide and liquid water. calculate the heat released in kilojoules per
question calculate the work done if a gas is compressed from 7.8 l to 2.6 l at constant temperature by a constant
A 0.465 g sample of an unknown compund occupies 245 ml at 298 K and 1.22 atm. What is the molar mass of the unknown compound?
Titanium (w=6.94x10^-19J) and silicon (w=7.77x10^-19J) surfaces are irradiated with UV radiation with a wavelength of 217nm. What is the wavelength of the electrons emitted by the titanium surface
In the qualitative analysis of antimony, please assist with net ionic equations for Sb3+ with thioacetamide, Sb2S3 with NaOH, Sb2S3 with conc. HCL, and SBCl6- with H2C2O4 and thioacetamide.
How do I calculate the concentration (molarity) using the calibration curve of absorbance vs. wavelength
The 2p-->1s transition in 4He+ is at 329,211 cm-1. Predict the position in cm-1 of the same transition for 3He+. (4He=2 protons+2 neutrons. 3He = 2 protons + 1 neutron)
Assume the reaction between phosphorus and chlorine gas to produce phosphorus pentachloride goes as far as possible to give the product
What is the purpose of adding sodium sulfate to the organic layer after all of the extractions are complete?
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