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The equilibrium constant K for a neutralization reaction can be symbolized as Kn. Utilizing Kw Ka, and Kb values, find out Kn for the subsequent reaction at 25° C.NH3(aq)+ HCN(aq) reverse arrow sign NH+4 (aq) + CN- (aq)
What volume of hydrogen at STP is produced by dissolving 13.49 g of aluminum in excess sulfuric acid? A. 11.2 L B. 14.9 L C. 16.8 L D. 22.4 L
to determine the volume of a gas using ideal gas law.what volume will 5.6 moles of sulfur hexafluoride sf6gas occupy if
in a particular biological reaction taking place in the body at 37degc the change in enthalpy was -shy-135 kj mol-shy-1
For each stereoisomer, draw the structure. Be sure to specify the stereochemistry via wedge-and-dash bonds. 1. (S)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol
A pH of 3.74 is reached when 18.50 mL of sodium hydroxide has been added to the acid solution. What is the molar mass of formic acid given this data?
the current generator box was only 89.3% current efficient, losing some current. The production of the tri-iodide ion was by the same oxidation reaction as in our lab. What is the ppm of water in the 250 ml ethanol sample?
The heat capacity of a bomb calorimeter is found to be 5.68 kJ/oC. When a 1.652 g sample of glucose is burned in the calorimeter, the temperature of the calorimeter increases from 24.56 oC to 29.10 oC. Calculate the heat of combustion of glucose.
You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the reading of 400. has diminished to 100. after 49.1 minutes , what is the half-life of this substance
calculate the volume of oxygen you would need at 1.00 atm and 298 k to completely oxidize 54 g of
The solid PbSO4 is collected, dried and determined to have a mass of 1.01g . Find out the limiting reactant, the theoretical yield and the percent yield
Trans-1-bromo-2-methylcyclohexane reacts under E2 conditions to give a single elimination product. What is this product and explain how it is formed by conformational analysis.
If 0.250 mole of hydrogen gas occupies 0.333 L at 20 degrees Celcius, what is the pressure in mmHg
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