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A strip of magnesium of mass 15g is dropped into a beaker of dilute hydrochloric acid. Calculate the work done (in J) on the surrounding atmosphere (1atm pressure, 25 o C ) by the evolution of hydrogen in the subsequent reaction.
At 850K the value of the equilibrium constant K(pressure) is 0.2970. If a sealed vessel contains an initial reaction mixture of [N2] = 0.0150M, [H2]= 0.0200M and N2H2= 0.000100M what will [N2H2] be when equilibrium in reached.
Suppose that the gas-phase reaction A B and B A are both elementary processes with rate constants of 6.56e-02 s-1 and 3.51e-04 s-1, respectively
The compound known as butylated hydroxytoluene, abbreviated as BHT, contains carbon, hyrdrogen, and oxygen. A 2.626 g sample of BHT was combusted in an oxygen rich environment to produce 7.867g of
Calculate the distances NH3 gas and HCL gas would travel in this experiment if a 100.00-cm tube were used, based on the accepted molar masses of the two gases.
potassium fluoride has a solubility of 92g of KF in 100 g of H2O at 18 degrees C. which of the following are saturated solutions and unsaturated solutions at 18 degrees C: a)46 g of KF and 100 g of H2O. b)46 g of KF and 50 g of H2O. c)184g of KF a..
A buffer solution is prepared by mixing 20.0 mL of 0.032 M benzoic acid C6H5COOH(aq) solution with 25.0 mL of 0.022 M NaC6H5COO(aq). What is the pH of the buffer produced? (Ka of benzoic acid = 6.2 x10-5).
the following ions contain the same number of electrons. rank them in order of decreasing ionic radii.rank from largest
Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 9.80 solution.
This question deals with the reaction between benzene and 1-chloro-2-methylpropane in the presence of AlCl3. Knowing that the arenium ion intermediate has positive charge on the ortho and para carbons
reaction begins only after a collision between the reactants. So this is an endothermic reaction, and most reactions occur when two reactants collide with each other.
What volume of water should be added to 600 mL of ethanol in order to have a solution that boils at 95 degrees Celsius? (For ethanol, Tb=78.4 degrees Celsius, Kb=1.22 degrees Celsius and d= 0.789 g/ml. For water d= 1.00 g/m
How many moles of MnO4 - ions are required. How many moles of Fe2+ are there in the sample. How many grams of iron are there in the sample. What is the mass percent of Fe in the sample
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