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use an orbital interaction diagram to draw the molecular orbitals oh H2+. Do you predict that this molecule will be stable? Explain your logic.
If 0.628 moles of a substance weighs 77.3 g, what is the molar mass of the substance, in units of g/mol?
Calculate the pH of a 1.39x10^-2 M solution of the decongestant ephedrine hydrochloride if the pKb of ephedrine (its conjugate base) is 3.86
determine at what pressure will pure H 2 O start to boil if its temperature is seventy five degree Celsius
Calculate the dryness fraction of the steam between the separator and the throttle, and hence the dryness fraction of the steam being bled from the system.
If the molality of your solution is 0.30, calculate the contribution to the percentage error in your results due to not correct for the errors in the thermometer readings.
what is the volume of the drink (in mL) required to meet the RDA?
An electron is confined to a one-dimensional box of length L. It falls from the second energy level to the ground state, and releases a photon with a wavelength of 322 nm. What is the length of the box?
A suitable storage place must be geologically stable long enough for the activity of plutonium-239 to decrease to 0.1% of its original value.
The world record for the marathon (26.2 miles) is 2:03:38 (hrs:min:s). Assuming constant velocities, calculate the corresponding wavelengths for each runner (be sure to label which is which).
what is an example of a hypothesis testing for the percentage of ethanoic acid in vinegar? Give me examples of hypotheses and how to test them. thanks :)
Titration of the I2 produced from .1045g of primary standard KIO3 required 30.72ml of sodium thiosulfate, Calculate the concentration of the Na2S2O3
If the volume of ocean water is 5.4*10^20 contains 4.1 percent sodium chloride ("salt") by mass and the density of the water is 1.86 g/mL.
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