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Explain what is the wavelength in meters of photons with the subsequent energies? Exp-lain in what region of the electromagnetic spectrum does each appear?
KCL has the same structure as NaCl, the length of the unit cell 638 pm the denstiy of KCl is 1.984 g/cm3 and its formula mass is 74.55 amu. what is avogadro's number?
An oxidation-reduction reaction in which 3 electrons are transferred has a deltaG(standard)=+18.55 kJ at 25 C. What is the value of E(standard)
how much aspirin can be made from 100.0 g of salicylic acid and 100 g of acetic anhydride? if 122 g of aspirin were
How many grams of phthalic acid o-C6H4(COOH)2 would be neutralized in 16.2 ml of a 0.100N NaOH solution?
The standardized potassium hydroxide solution is then used to titrate 33.99 mL of a solution of hypochlorous acid (HClO). An endpoint is reached when 25.29 mL of potassium hydroxide has been added. Determine the molarity (in mol/L) of the hypochlo..
An essential amino acid is one that you cannot make at a rate consistent with the normal growth and maintenance, which of the following sets consists of only essential amino acids
For a given reaction, ?H= -19.9 kJ/mol and ?S= -55.5 J/K-mol. The reaction will have ?G=0 at what temperature? Assume that H and S do not vary with temperature.
What will be the final temperature of a mixture made from equal masses of water at 24.1 C, ethanol at 37.3 C, and iron at 93.3 C? The specific heat capacities of each are: 0.449J/g C (Fe), 4.18J/g C(Water), and 2.42 J/g C (ethanol).
consider the following reactions and the associated rate laws. Which reaction represents an elementary step
Titrations: Finding Concentration, A 35.00 mL solution containing an unknown concentration of pyruvic acid required 25.13 mL of 0.2011 M NaOH to reach the end point.
causes the temperature to rise from 23.98 degree C to 26.45 degree C. What is delta E for the reaction of 1.00 mole of C2H5OH? C2H5OH(l) + 3O2(g) ? 2CO2(g) + 3H2O(l)
For the reaction 2NO + Cl2 = 2NOCl, if the change in Molarity is CL2 is 2.41 x 10 -2 M in one second, How do you find the rate of formation of NOCl
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