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Utilizing published mass excess values to compute the decay energy Q (in MeV) for the following radioisotopes.
a. 238Pu (alpha decay)
b. 60Co
c. 11C
d. 208Bi
Explain which of the subsequent species are capable of hydrogen bonding among themselves
Draw the structure of an eight-carbon alkene that would yield the following compound after treatment with ozone followed by dimethyl sulfide
How many grams of ethylene glycol (automobile antifreeze, C2H6O2) dissolved in 3.55kg of water is needed to lower the freezing point
an iron ore sample contains fe2o3 together with other substances. reaction of the ore with co produces iron metal fe2o3
Calculate the vapor pressure of a solution containing 25.3g of glycerin C3H8O3 in 125mL of water at 30.0C. The vapor pressure of pure water at this temperature is 31.8torr}. Assume that glycerin is not volatile and dissolves molecularly (i.e., it ..
Draw the lewis dot structure and predict the molecular and electron-domain geometries of the following ions. a) NO2- b) CO3 2- c)ClO2-
The enthalpy of a solution of KBr in water is about +198 kJ/mol. Nevertheless, the solubility of KBr in water is relatively high. Why does the solution process occur even though it is endothermic
a) Depict and name all of the isomers of dibromobenzene. Explain why is there no cis/trans geometric isomerism. b) Depict and name all the isomers of tribromobenzene.
a gas-filled balloon having a volume of 2.50 l at 1.2 atm and 25degc is allowed to rise to the stratosphere about 30 km
Study of a first-order reaction, In the study of a first-order reaction, A--->B, it is found that A/Ao=0.125 after one hour. The system initially consisted of 0.20 mole of a gaseous A at 25 degrees C and 1 atm
It takes 208.4 kJ of energy to remove one mole of electrons from an atom on the surface of rubidium metal. How much energy does it take to take away a single electron from an atom on the surface of solid rubidium
The decomposition of hydrogen peroxid is second order in H2O2. If 50 grams of 30% hydrogen peroxide is placed in a beaker within a sealed environment, what will be the concentration of hydrogen peroxide
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