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A recently discovered substance has the following properties:it has a melting point of 1000.0 degrees C and is relatively heavy, density 11.655 g/mL and that the radius of the atom is found to be 144.8 pm. Into what type of unit cell (i.e., simple cubic, face-centered cubic, or body-centered cubic) does this material crystallize? Be sure to fully support your answer. The apparent atomic mass is 120.5 amu. Remember that 1 amu = 1.660538783 × 10!24 g.
At 1100 K, Kp = 0.25 for the following reaction. 2 SO2(g) + O2(g) reverse reaction arrow 2 SO3(g) What is the value of K at this temperature?
High blood levels of triglycerides are thought to be partially responsible for clogging of arteries, heart attacks, and strokes. A female had a blood test that gave a high triglyceride level
A titanium bicycle frame contains the same amount of titanium as a titanium cube measuring 6.6cm on a side. 1) Use the density of titanium to calculate the mass in kilograms of titanium in the frame.
Predict the normal boiling point of pure B (in degrees Celcius) given that deltaHvaporization(Pure B)=67.9kJ/mol.
It is possible to define metallic character as we do in this book and base it on the reactivity of the element and the ease with which it loses electrons.
Calculate the values of vmax and Km for the reaction. c) How much of a noncompetitive inhibitor must be added to yield 90% inhibition? The degree of inhibition, i, is calculated by i% = (1-?) 100%, where ? = (vo)inhibition/ vo Assume KI = 2.9 x 1..
What is the pressure of a 10g sample of sulfur trioxide in atmospheres at a temperature of 20 degrees Celsius that has a volume of 50L
500 mL of 0.1 M NaOH is added to 585 mL of 0.25 M weak acid (Ka = 2.21 x 10^-5). What is the pH of the resulting buffer?
How much heat (in kJ}) is evolved in converting 1.00 {mol} of steam at 160.0C to ice at -55.0C? The heat capacity of steam is 2.01 {J}}/{{g.C}} and of ice is 2.09 {J}}/{{g.C}}.
Use your experimentally determined value of ksp and show,by calculations, that Ag2CrO4 should precipitate when 5mL of 0.004M AgNO3 are added to 5mL of 0.0024 M K2CrO4.
the chemical reaction between reagents supplied from an outside source. What is the emf of a cell fuelled by (a) hydrogen and oxygen, (b) the combustion of butane at 1.0 bar and 298 k.
The relationship (if any) of the lattice energy of compounds such as ZnO vs. H3BO3 vs. their respective solubilities. For instance, at neutral pH and standard conditions
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