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The value of Kc for the reaction below is 0.016. Under a set of equilibrium conditions, [HI] = 0.10 M and [H2] = [I2]. Calculate the concentration of I2 (M). 2HI(g) H2(g) + I2(g)
why zinc and magnesium good sacrificial anodes for pipeline,but lead and tin will not be good? what would happen to pipeline protected by lead sacrificial anodes,and why?
Write the chemical equation for the formation of HBr from H and Br atoms. Lone pairs do not need to be included. Using the table of bond energies determine the ?H for the above reaction. (KJ/Mol)
a 155 gram sample of copper was heated to 150 degrees celsius then placed into 250 gram of water at 19.8 degrees
When coal is burned, the sulfur present in coal is converted to sulfur dioxide (SO2), which is responsible for the acid rain phenomenon. S(s) + O2(g) ? SO2(g) If 1.64 kg of S are reacted with oxygen, calculate the volume of SO2 gas (in mL) formed ..
The atomic weight of a newly discovered el-ement is 10.600 amu. It has two naturally occuring isotopes. One has a mass of 10.000 gms and a natural abundance of 70.000%. What is the isotopic mass of the other isotope?
A heat of fusion of dethyl ether ((CH3)2(CH2)2O) is 185.4 kJ/MOL. Calculate the change in entrophy when 72g of diethyl ether melts at -117.4 Celcius.
How many grams of NaOH must be weighed to prepare 1.50 L of an aqueous solution of 3.75 M NaOH. The mass of NaOH is ___x10^__ g
A peanut is burned in a calorimeter made from an aluminum can. The peanut weighed 0.780 g before combustin and .054 g after combustion. The temperature change of aluminum can filled with 200 ml of water was 15.3. (Density of water = 1.00g/C)
Substrates and reactive groups in an enzyme's active site must be precisely aligned in order for a productive reaction to occur. Why, then, is some conformational flexibility also a requirement for catalysis
the micronutrient calcium is often applied in the form of calcium (II) sulfate. Write the equation for the formation of calcium (II) sulfate from calcium (II) oxide and an appropriate acid.
How many milliliters of 0.200 M NaOH are needed to neutralize 100. mL of 0.100 M HCl
when carbon monoxide was burned with excess air at constant pressure and the measured temperature of exit gases
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