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a) How many pi bonds are in a molecule of N2? b)What is the hybridization of the NItrogen?
Calculate the nuclear binding energy per mole of nuclei of and the binding energy per mole of nucleons for 31P. The required masses (g/mol) are: 1 1H = 1.00783; 1 0n = 1.00867; 31 15P = 30.97376
The densities of Zn, Cr and Fe are 7.89, 7.20, 7.86 g/cm3 respectively. When a 96.7 gram sample of an unkown metal is placed in a graduated cylinder containing 20.0 mL water, the water level rises to 32.3 mL. What is this metal?
Calculate the equilibrium constant at 0c and at 50c(assuming enthalpies of formation are independent of temp)
Dissolving 3.00 g of an impure sample of CaCO3 in an excess of HCl acid produced .656 L of CO2 (measured at 20 degrees C and 792 mmHg). calculate the percent by mass of calcium carbonate in the sample. State any assumptions.
At a given temperature, 1.40 atm of H2 and 2.03 atm of I2 are mixed and allowed to come to equilibrium. The equilibrium pressure of HI is found to be 1.305 atm. Calculate Kp for the reaction at this temperature.
Use the appropriate standard reduction potentials in your book to calculate the value of K at 25C for the reaction NiO2(s)+2Cl-(aq)+4H+(aq) arrow Cl2(g)+Ni2+(aq)+H2O(l)
if 646 mL of gas at 280 K Is heated to 297 K, what will the new volume be? using charles's law
how many moles of nitrogen are in 5.3 L container at 1.25 atm and a temp of 85 degrees C.
Calculate DE, and determine whether the process is endothermic or exothermic for the following cases: A system releases 43 kJ of heat to the surroundings and has 665 kJ of work done on it by the surroundings.
Mg3N2(s) + H2O(l) → Mg(OH)2(s) + NH3(g) If this process is 82% efficient, what mass of ammonia can be prepared from 22.0 kg magnesium nitride.
A mixture is prepared using 25.00 mL of 0.08000 M aniline, 25.00 mL of 0.06000 M sulfanilic acid and 1.00 mL of 1.230 × 10-4 M HIn and then diluting to 100.0mL
What would be the synthesis for my chaclone synthesis if 3-nitrobenzaldehyde were to react with 4-bromoactylphenone
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