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State the four quantum numbers for all the electrons in the 4s, 4p, 4d, and 4f orbitals for example, those found in mercury.
A researcher suspects that the pressure gauge on a 49.9-L gas cylinder containing nitric oxide is broken. An empty gas cylinder weighs 135 lb. The weight of the partially full cylinder is 164.2 lb.
If a person produces and exudes polyunsaturated oil from their skin, how does it ultimately make clothes smell bad, and how does baking soda remove the odor?
A mass of 46 g of solid sodium reacts with 38 g of flourine gas to produce 84 g of sodium flouride, Na F.
The value of Kc for the reaction below is 0.016. Under a set of equilibrium conditions, [HI] = 0.10 M and [H2] = [I2]. Calculate the concentration of I2 (M).
Which of the following salts will make an ACIDIC solution when dissolved in water. a. NH4Cl b. Al(NO3)3 c. K2CO3 d. NaF Which of the following salts will make a BASIC solution when dissolved in water. a. NaHS b. Cu(NO3)2 c. KHCO3 d. NaF
The energy required to dissociate the H2 molecule to H atoms is 432 KJ/mol H2. If the dissociation of an H2 molecule were accomplished by the absorption of a single photon whose energy was exactly the quantity required , that would be its wavelend..
Suppose a 500mL solution contains 2.00 millimoles of Co(NO3)2, 150.0 millimoles of NH3, and 150.0 milllimoles of Ethylendediamine (en). What is the concentration of Cobalt 2+ (aq) in the solution?
0.65 of sodium hydroxide (NaOH) pellets are dissolved in water to make 2.5L of solution. What is the pH of this solution
A particular reaction has a ?Ho value of -155 kJ and ?So of -282 J/mol K at 298 K. Assuming that ?Ho and ?So hardly change with temperature, determine the temperature in K at which the spontaneity of this reaction changes.
ammonium nitrate decomposes to n2o and water at temperatures between 250degc and 300degc. write a balanced chemical
calculate the molar concentration of oh - ions in an 1.37 m solution of hypobromite ion bro- kb 4.0
What is the pH of a buffer prepared by adding 0.506 mol of the weak acid HA to 0.305 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66*10^-7
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