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The Ka of cyanic acid, HOCN is 3.5 x 10-4. Calculate the pH of a 0.804 M solution of HOCN? Assume you do not have to use the quadratic formula
sulfate pentahydrate are made into a solution with 512.441 g of water. What is the molality of the copper sulfate solution?
the hydrogen atom relaxes to a lower energy level, emitting light of 397nm. What is the value of n for the level to which the electron relaxed
How much heat is needed in kJ to convert 878 g of ice at -10°C to steam at 134°C? (The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively. The heat of fusion is 6.02 kJ/mol and heat of vaporiza..
Describe in detail the symptoms of this blood disorder. Explain the difference in the cells of this girl and a person who does not suffer from the disorder.
A "Nature Valley Trail Mix " chewy granola bar contains 140 calories (Cal). If this energy were to be used to heat up 4.25 L of water at 25 degrees Celsius
No carbon atom in the structure of Y has more than one oxygen atom bonded to it, and Y can exist in two (and only two) stereoisomers forms. What are the structures of these forms of Y?
how many moles are there of the reducing agent. What is the molarity of the reducing agent? Oxidizing agent --> KMnO4 Reducing Agent --> Fe +2 Volume of Fe +2 = 25 mL Concentration of KMnO4 = 0.1290 M
Ionization energy is the energy required to remove an electron from an atom in the gas phase. The ionization energy of lead is 715.0 kJ/mol.
At 7645 oC, Keq = 1.12 for the reaction: 1/2 N2(g) + 1/2 O2(g) ? NO2(g) (a) What is the value of Keq for the reaction NO2(g) ? 1/2 N2(g) + 1/2 O2(g)? Keq = . (b) What is the value of Keq for the reaction N2(g) + O2(g) ? 2 NO2(g)? Keq = . (c) What ..
For the equilibrium H2(g)+ CO2 (g) H20 (g) + CO(g) Kc = 3.18 at 1106K. If each of the four species was initially present at a concentration of 3.000M, calculate the equilibrium concentration of the CO(g) at this temperature
Explain why and calculate the difference between the delta S° values at 298 K for the complete dissociation of the two complex ions. (Hint: the value delta H is about the same for both systems.)
What is the final concentration of copper in the flask b)what is the uncertainty in the value of the copper concentration?
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