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Imagine gaseous Ar at 298 K confined to move in a two-dimensional plane of area 1.00 cm^2. What is the value of the translational partition function?
draw a lewis structure for one important resonance form of HAsO4 2-. In clude lone pair electrons and indicate nonzero formal charges
Which has the highest vapor pressure?
Determine what the mothballs were made of. Pure ethyl alcohol has a boiling point of 78.41 degrees C and Kb = 1.22 deg C/m for this solvent.
Beginning with 150.0 mL of 0.175 M ammonia, determine the solution's pH after an additional 25.0 mL of 0.400 M ammonium chloride is added to the solution be sure to account for the change in volume at each step.
If the ratio [HbCO]/[HbO2] comes close to 1, death will happen. What partial pressure of CO is fatal. Assume the partial pressure of O2 is 0.20 atm (since air is 20% O2).
Now if your lab partner needed 7.030 x 1019 molecules of Sodium cyanide (NaCN), how many milligrams would you need to weigh out?
crystallizes in a body-centered cubic array of atoms in which the length of the unit cell's edge is 569.7 pm (10-12 m). Calculate the density of the metal in g/cm3.
Determine the concentration of the total available acid of the apple juice express your answer in moles/L?
Lead ions can be removed from solution by precipitation with sulfate ions. Suppose that a solution contains lead(II) nitrate. Write complete ionic equation to show the reaction of aqueous lead(II) nitrate with aqueous potassium sulfate to form sol..
A gravimetric method for Al was found to give results that are constantly low by 0.70 mg Al. Calculate the parts per thousand error when 750 mg sample containing approximately 12% Al is analyzed by this method.
What is the ratio of C-14 in a wooden object made in 100 BC to the one made of the same kind of wood in 700 BC? Half life of carbon-14 is 5730 years.
D=(KBT)/6 xpie xr x n The HIV-1 virus has a radius of about 50 nm. The viscosity coefficient of water at 20 °C is 1.00 mPa·s. How far will a particle of HIV-1 typically travel in 1 minute
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