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Explain the paramagnetic behaviour of oxygen on the basis of molecular orbital theory. Give reasons for a large difference in melting and boiling points between oxygen and sulphur.
A solution is created by adding 0.05 moles of H2CO3 (3.1 g, total mass) to 5-L of water, resulting in a pH of 4.2. Now, we add sodium hydroxide (NaOH, strong base) until the pH reaches 10. You can neglect any changes in volume. What is the alkalin..
why is it important that none of the solid CaCl2 be included in the final distillation of 1-bromobutane?
Which one of these samples contains the smallest number of molecule A) 1.0L of H2 at STP(0c and 1atm) B) 1.0L of N2 at STP. C) 1.0 L of H2at 20 c and 760 torr. D) 1.0L of N2 at 0c and 800torr. E) 1.0 L of He at STP
Explain how the company might change its accounting system to reflect the reporting problems better? Are there other problems with the purchasing area?
Define if 4.1 g of Pb(NO3)2 is added to enough water to make a 100.0 mL solution, explain what is the final concentration of free nitrate ions (NO3-)
At 20 degrees C, 0.164 mg of H2 dissolves in 100.0 g of water when the H2 pressure above the water is 1.000 atm. Find the Henry's law constant for H2 is water at 20 degrees C.
1.i need to prepare a solution of 0.2 l 0.4 m then determine how many cm3 of a solution of h2so4 sulfuric acid 80.0
what is the concentration of the 25.0 mL of diluted drink in the volumetric flask?
What volume of 0.455 M KOH must be diluted with water to prepare 2.50 L of a solution having a pH of 12.50
Propane (C3H8) is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 76.6 g of propane, determine the following, in 4 significant figures.
Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
Consider the following pair of nucleophiles in CH3OH. Which, a: F- or b: N3- is the better nucleophile. Consider the following pair of nucleophiles in CH3OH. Which, a: CH3S- or b: H2O is the better nucleophile
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