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Tungsten has a BCC structure, an atomic radius of 0.137 nm and an atomic weight of 183.84 g/mol. Compute its theoretical density.
Aerosol cans have a label that warns the user not to use them above a certain temperature and not to dispose of them by incineration. Even an empty can contains residual gaseous propellant.
If a solution of KBr (MM=119.01 g/mol) has a concentration of 2.5 M and a solution density of 1.05 g/ml what is the mass % of the KBr solution
How can you tell that Cobalt(II) iodide is a binary ionic compound formed by a transition metal with more than one ionic charge?
Why is it not possible to use acetic acid rather than formic acid in the Eischwieler-Clarke reaction
Calculate the solubility (in mol/L) of silver chloride in 2.0 M NH3 solution. How many grams of AgCl will dissolve in 500. mL of 2.0 M NH3?
When a space shuttle re-enters the atmosphere, its temperature rises and it can heat the surrounding air to 1260 degrees celcius. At that temerature some endothermic reactions take place that atlower temperatures are not spontaneous under standard..
Calculate the PH of the cathode compartment solution if the cell emf at 298K is measured to be 0.660V when (Zn^2+)=0.22 M and(P_H2)= 0.87atm
A horizontal piston contains 34kg of water that is saturated at 36oC. Heat is transferred to the water until 80% of the water vaporizes.
Consider a solution that is 0.10 M in a weak triprotic acid that is represented by the general formula H3A with the following ionization constants. What is the concentration of HA2-? For H3A Ka1=1.0E-3 Ka2= 1.0E-8 Ka3= 1.0E-12
Calculate the pH of a solution that is prepared mixing 2.16 grams of propanoic acid (74.08 g/mol) and 0.56 grams of NaOH (40.00 g/mol) in enough water to make 100.0 mL
The Ksp of calcium carbonate, CaCO3, is 3.36 × 10-9. Calculate the solubility of this compound in g/L.
The barometer in the lab has a 626mm column of mercury and the thermometer reads 26degrees celsius. Given that air is 78% by volume nitrogen, what is the density of nitrogen in the lab. Can you do your experiment or should you just go home
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