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Problem- Aluminum has a density of 2.699 g/cm3. The atoms are packed in a face-centered cubic crystal lattice. What is the radius of the aluminum atoms?
143.2 pm
27 pm
84 pm
120 pm
Any expert is able to provide answer for this problem in very short time
if 32.7 ml of 0.225 m koh is required to completely neutralize 28.0 ml of a ch3cooh solution what is the molarity of
the concentrations of the four main individual ionic compouns are 0.48 M NaCl, 0.090 M MgCl2, 0.0250 M CaCl2 and 0.0050 M KCl. what is the total mass of salt in one liter of seawater?
Problem- Other than fluoride ions in toothpaste preventing tooth decay, what is another example from your everyday life where solubility is important? Explain how solubility plays a role.
Potable water (drinking water) should not have manganese concentrations in excess of 0.05 mg/mL. If the manganese concentration is greater than 0.1 mg/mL, it imparts a foul taste to the water and discolors laundry and porcelain surfaces.
Treatment of X with Ag(NH3)2 (silver diamine complex), yields a solid Z. When X is treated with H2O/H2SO4, an optically active product W, C7H14O, is formed. Draw the structures of X, Y, Z, and W.
given the equation aaq 2baq 3caq 2daq. 45.0 ml of 0.050 m a is mixed with 25.0 ml 0.100 m b. at equilibrium the
2,4,6-Trichlorophenol is considerably more acidic (pKa = 6) than phenol. Draw the resonance structures for the 2,4,6-trichlorophenoxide ion that explain why it is more acidic, and provide ONE sentence explaining the significance of these structures..
A solution of water (Kb=0.512 C) and glucose freezes at 4.15. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 .
Problem- Look up the structure of the following pesticides and show how they could interact with generic humic material. Atrazine, Fenitrothion, Chlorpyrifos, Chlordane, Chlorothalonil, Aldicarb, Malathion and Trifluralin
Problem- Consider a 1.0 L solution of 0.5 M hypochlorous acid. Solid sodium hydroxide is added to the solution until the pH = 7.00. How much NaOH was added? Assume change in volume is negligible. MMNaOH = 40.00 g/mol.
A sample containing 4.80 g of O2 gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new volume if 0.500 moles of O2 gas is added?
Construct a Born-Haber cycle for the formation of the hypothetical compound NaCl2, where to sodium ion has a 2+ charge
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