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Write the net ionic equations and calculate the enthalpy of neutralization for the net ionic equations:
a) HCl(aq)+NaOH(aq)
b) HNO3(aq)+NaOH(aq)
Titration of the I2 produced from .1045g of primary standard KIO3 required 30.72ml of sodium thiosulfate, Calculate the concentration of the Na2S2O3
Define three carbon atoms bear the unpaired electron, The pentadienyl radical, CH2=CH-CH=CH-CH2, has its unpaired electrons delocalized over three carbon atoms
Distance between two consecutive peaks or troughs. Frequency () Number of waves per second that pass through a given point in space. How are frequency and wavelength related? Example: Are gamma rays ( = 10-12 m) a form of high or low frequency rad..
The volume the vapor occupies is 300 mL and the pressure of the vapor is 400 torr. The piston is then moved so that the vapor occupies 600 mL, and the system is allowed to come to equilibrium at 28 C. What is the final pressure of the CS2 in the v..
how many square meters of floor space are there in a room which has 225.0 square yard of floor space 1 m=39.37 in, 1 yard =36 in.
Draw and name all dienes of molecular formula C5H8. When E and Z isomers are possible, draw and name each stereoisomer.
Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction?
the solubility of lead (ii) iodide (PbI2) is 0.64 g/L at 20 C. What is the solubility product for lead (II) iodide? Show work please
A student adds 0.1 mol of oxalic acid (H2C2O4) and 0.1mol of sodium dihydrogen phosphate to enough water to make 1.0L of solution. The following equilibrium is established with Kc from this reaction greater than 1
Ammonia reacts with oxygen according tot he following equation: 4NH3+5O2=4NO+6H2O deltaHrxn = -906kJ Calculate the heat (in kJ) associated with the complete reaction of 155g of NH3.
In an electrolysis cell similar to the one employed in this experiment, a student observed that his unknown metal anode lost 0.238 g while a total volume of 84.90 mL of H2 was being produced.
Calculate the energy in kJ/mol of a mol of photons in the gamma ray region of the electromagnetic spectrum that has a wavelength of 4.13 pm. Express answer in scientific notation.
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