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what is the ph of the solution if .02 mol hcl is added to .5L of a .34m nh3 and .56m nh4cl buffer solution
The activation energy for the reaction O + O3 ? 2O2 is 25 kJ/mol, and the enthalpy change is ?H = -388 kJ/mol. What is the activation energy for the decomposition of O2 by the reverse reaction
Choose only the mixtures that constitute buffer solutions. Can someone how i would determine this as well? 0.30 M HOCN mixed with 0.35 M NaNO3
How much heat (in {rm kJ}) is evolved in converting 1.00 mol of steam at 140.0 C to ice at -55.C? The heat capacity of steam is 2.01J/g* C and of ice is 2.09 j/g* C.
Of the several landfill alternatives, which are preventative? Which take up the least space? Explain
What is the geometry and hybridization of the carbonyl carbon in carboxylic acids and their derivatives.
How much heat is evolved in converting 1.00 mol of steam at 145°C to ice at -50.0°C? The heat capacity of steam is 2.01J/g?°C and of ice is 2.09J/g?°C.
What is the total pressure in a 11.0 L flask 20.0°C, which contains 0.127 moles of H2 and 0.288 moles of N2
A sample of a radioisotope shows an activity of 999 disintegrations per minute due to beta decay. If after 1.10 years the activity is 952 disintegrations per minute, what is the half-life of this radioisotope
Identify the original liquid and write a structure for the solid derivative. After identifying the unknown liquid, can you indicate what the structure of the precipitate obtained on reaction with bromine might be?
what would happen to the molar mass of the solute if the thermometer used actually read 1.4 degrees Celsius too high?
If the reaction mixture initially contains only O2(g) and F2(g), then at equilibrium, the reaction mixture will consist of essentially only OF2(g).
3I2(s) + 2P(s) → 2PI3(s) What is the percent yield of the reaction if 28.3 g of phosphorus triiodide PI3 is obtained when 68.0 g of I2 and 68.0 g of P are mixed and allowed to react.
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