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Using Henderson-Hasselbalch Equation,
What is the pH of a buffer prepared by mixing equal volumes of 0.1 M KH2PO4 and 0.01 M K2HPO4?
Ka = 1 x 10^-7
why is it that a solution of sodium dichromate in sulfuric acid is perfect to oxidize a secondary alcohol to a
The bottle is then brought outside and stored at 0.0°C. (a) What mass of liquid water condenses inside the bottle?
Explain what is the pressure in a 14.5 L cylinder filled with 0.440mol of nitrogen gas at a temperature of 315K
Find out the concentration of this solution 1) in m (molality), 2) XHX (mole fraction of HX), 3)% w/w (percent by mass) if solvent in this solution is H 2 O. ?
How many grams of mercury(II) oxide are needed to produce 3.05 L of oxygen gas according to the following reaction at 25 C and 1 atm mercury(II) oxide (s)------ mercury (l) + oxygen (g)
what is the analytical molarity of fecl3 in a solution prepared by dissolving 1.340 g of fecl3 in water and diluting to
Assume that 500g of dry ice is placed in a cavity with a volume of 0.800 L and the ignited gunpowder heats the CO2 to 700 K. What is the final pressure in the hole?
The age of a rock was was estimated using 238U radiometric dating. The ratio of 238U to 206Pb (238U decays to 206Pb) was approximately equal to 1. If the half-life of 238U is 4.5 billion y, and if it is assumed there was no 206Pb initially, how ol..
The standard cell potential () of the reaction below is -0.34 V. The value of for the reaction is __________ kJ/mol. Cu (s) + 2H+ (aq) ? Cu2+ (aq) + H2 (g)
what are the atomic orbitals used in the double part of the double bond if the c-c axis of the given molecule is the y
Set up the problem by listing the reactions unknowns equations and knowns b.) Calculate the concentrations of all chemical species present in the solution, and the pH.
Question- The value of for the reaction below is -790 kJ. The enthalpy change accompanying the reaction of 0.95 g of S is 2S(s)+3O2(g) - 2SO3(g)
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