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Write the angular momentum quantum number (l), and magnetic quantum number (ml) of orbitals with principle quantum number (n) of 4.
A 2.000-L flask was filled with 0.0393 mol SO2 and 0.0197 mol O2. At equilibrium at 907 K, the flask contained 0.0299 mol SO3. How many moles of each substance were in the flask at equilibrium?
A mixture of Ar and N2 gases has a density of 1.416 at STP. What is the mole fraction of each gas?
Calculate the volume of 1 M solution of NaOH required to neutralize 20mL of 0.1 M acetic acid solution (final pH should ;be 7.0). (pKa of Acetic acid = 4.76).
What are the complete and net ionic equations for silver nitrate and potassium iodide in a double displacement
discuss at least three potentially hazardous features associated with concentrated sulfuric
The molecular geometry of CS2 molecule is A. Linear B. Bent C. Tetrahedral D. Trigonal Planar E. T-shaped
Methyl alcohol (CH3OH) is made by reacting carbon monoxide with H2. Starting with 2.5 g of H2 and 30 L of CO, what mass of methyl alcohol could be produced at STP? which is the limiting reactant?
The mercury level in the open end of the manometer is 22 mm below that in the side connected to the argon. What is the pressure of argon, in mmHg
A laboratory technician needs to make 500.0mL of a 0.25 M NaOH solution. What mass of sodium hydroxide does the technician need to use?
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places.
A sample of krypton gas at 75.0 psi and 100 degrees Celcius expands from 0.100 L to 0.450 L. If the temperature remains constant, what is the final pressure
The pressure increased as the gaseous reaction PCl5 1 PCl3 +Cl2 occurred. When equilibrium was achieved, the pressure in the tube had increased to 1.25 atm. Calculate Kp.
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