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The molecules CH4 and CH3Cl both have tetrahedral shapes. Why is CH4 nonpolar whereas CH3Cl is polar?
How many moles of copper atoms were lost? ii. The Faraday constant. iii. The charge of one electron. iv. The mass of one electron.
Two compounds have the same empirical formula. One substance is a gas, the other is a viscous liquid. How is it possible for two substances with the same empirical formula to have markedly different properties?
Kennedy Space Center in Cape Canaveral, Florida, is the largest building in the world, with a volume of 3,666,500 m3.
Compute the composition of the crystals and the yield of the process. Also determine the composition of the mother liquor?
A gaseous reaction occurs at a constant pressure of 50atm and releases 61.5kJ of heat. Before the reaction, the volume of the system was 7.00L. After the reaction, the volume of the system was 2.60L.
Calculate the solubility in g/L of MgCO3 in the following solutions. (a) pure water (b) 0.0010 M Na2CO3 (Use the quadratic equation.) Calculate the molar solubility of AgBr in a 3.0 M NH3 solution.
Air coming from a painting operation contains 10.0 wt% acetone. The total flow rate of the air/acetone stream is 1.00x103 lbm/min. This stream is sent to a scrubbing system where it is mixed with water.
What are the concentrations of H30+, OH-, NH4+ at the equivalence point? What is the pH of the solution at the equivalence point
Propanoic acid has Ka of 1.4x10^-5. If we make a solution 0.100M propanoic acid, what concentration of sodium propanoate should be added to give a buffer with a pH of 5.0?
Determine the point group of each of the three possible geometries of the hypothetical Be3+ on, ten draw the molecular orbitals for each geometry,
Calculate the mass of sodium acetate that must be added to 500.0 mL of 0.200 M acetic acid to form a pH = 5.00 buffer solution.
When 5.25 g of sodium oxalate is reacted with 5.25 g of calcium chloride, how many grams of sodium chloride and calcium oxalate are formed?
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