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1. Explain why SiF4 has a bond angle of 109.5 degree
2. Explain why Lewis dot structure for S2Cl2 IS Cl - S - S - Cl why does the two sulfurs have to be beside each other and the two chlorines have to be the first and last?
What is the Lewis dot structure of S2Cl2?
How many grams of oxygen gas are required to produce 7.68 kJ of heat when hydrogen gas burns at constant pressure to produce gaseous water?
At a pressure of 1.00 atm and a temperature of 20ºC, 1.72 g CO2 will dissolve in 1 L of water. How much CO2 will dissolve if the pressure is raised to 1.35 atm and the temperature stays the same?
If all of this O3 is converted to oxygen, O2, at the same temperature and pressure then what will be the volume of the oxygen formed?
Which process is accompanied by an increase in entropy?
What is the sequence of the peptide? Use the one-letter abbreviations for the amino acids, and do not use dashes.
What volume of ammonia gas measured at 762 mm Hg and 21.0 °C must be absorbed by the same solution to neutralize the HCl?
A physiological saline solution contains 154 mEq/L each of Na+ and Cl-. How many moles of Na+ are in 1.00L of the saline solution?
If 0.214 mol of argon gas occupies a volume of 652 mL at a particular temperature and pressure, what volume would 0.375 mol of argon occupy under the same conditions?
A chemical reaction produces 653 550 kJ of energy as heat in 142.3 min. Calculate the rate of energy tranfer in kilojoules per minute.
Consider a chromatogram containing a single analyte with retention time of 4 minutes. The mobile phase elution time is 0.2 minutes. What is the capacity factor (k') for the analyte in question?
Use the Simple Huckel Molecular Orbital (SHMO) program to calculate which Pi system is more stable, anthracene or phenathrene.
Even with a perfect shima and a higher field of instrument, the spectrum of 2-methyl-2-hexanol is difficult to interpret. Give two different reasons for this difficulty
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