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Explain how much energy must be invested for a proton to approach a lithium atom without any electrons at the distance of 1 *10E-13 m? (k=2.31E-16 J, pm
Explain an acidic solution of permanganate ion reacts with oxalate ion to form carbon dioxide also Mn. State the balanced equation for the reaction.
The bicarbonate buffering system is one of the major pH regulating mechanisms in your blood. which of the following is not a compound formed in th transport of carbon dioxide via this buffering system.
The hot combustion product gas passes through a boiler in which heat transferred from the gas converts boiler feedwater into steam. a) Calculate the concentration of CO (ppm) in the stack gas.
A freezing point of -5.20?C is recorded for a solution made by dissolving 10.56 g of the compound in 25.0 g of water. Determine the molar mass, and molecular formula of the compound. Assume that the compound is a nonelectrolyte.
You have a sample of bone collected from Nevada and you find that it contains strontium-90 and exhibits an activity of 2.5 Bq. How much strontium-90 was present in the bone when the animal died 45 years ago?(The half-life of 90Sr is 29 years.)
a typical diver inhales 0.500 l of air per breath and carries a 20 l breathing tank containing air at a pressure of 300
A system comprised of 2.900×10^1 g of Ne(g) cools from 170.0°C to 45.0°C at a constant pressure of 5.5 atm. The molar heat capacity at constant pressure for Ne(g) is 20.80 J K?1 mol?1. calculate q,w,delta E, ANDdelta H
A peat soil was found to have the following Langmuir constants for the adsorption of heavy metals. Using the nonlinear Langmuir equation above, show the equations and plot the nonlinear adsorption isotherms for the three metals
suppose you accidently add too much naoh during the titration. you then add a volume of hcl exactly equal to frac12 the
a solution made up of 150 g of benzene and 25.1 g of solute has afreezing point of -1.920c. determine the
Based on the given ion concentration for water below,what is the alkalinity (in mg/L as CaCO3)Note :the ion concentration s in the table below are NOT given in mg/l as CaCO3.
For this lab, we had to separate 3 mixed compounds by means of simple distillation. After performing simple distillation, how do we determine the volume (or size) of the combined pure fractions for each of the three components
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