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Two buffers ,(X) and (Y) of pH 4.0 and 6.0 respectively are prepared from acid HA and the salt NaA. Both the buffers are 0.5M in HA.What would be the PH of the solution obtained by mixing equal volumes of the two buffers?
explain why the addition of s2-ion to croh3 does not result in the formation of cr2s3. the addition of s2- ion to feoh2
What are the odds of finding a particle in a one dimensional box between 0 and L/2, that is L is the length of the box. Assume that the particle is in the second to lowest energy level (n = 2).
Compute the cell potential of the subsequent reaction as written at 25.00 degress Celsius, given that [Zn2+]=0.823M and [Fe2+]=0.0130M.
If a gas held at constant pressure had an initial volume of 5.00 L and the temperature changed from 35°C to 578 K what would be the final volume of this gas?
Imagine that a chemist has triphenylphosphine, cyclohexanone and 2-bromobutane. Depict the organic product resulting from by means of these chemicals in the Wittig reaction.
How many milliliters of a 330 mL solution of 1.5 M Na3PO4 must be used to make 53 mL of a solution that has a concentration of .5 M PO43-?
If 10 g of chlorine gas is reacted with a solution containing 25 g of sodium bromide, which substance is limiting and calculate the mass of mass of bromine produced
Calculate the initial concentration of the colored reactant if the absorbance is 0.605 at the beginning of the reaction.
In 30% surplus air methane combustion the adiabatic flame temperature is higher by at least 50 degrees when species dissociation is neglected.
The flask was then shaken until the solution was uniform. A 60.0ml- sample of this glucose solution was diluted to 0.500 L . How many grams of glucose are in 100.ml of the final solution?
When a He atom absorbs a photon to form the excited configuration 1s^1 2s^1 (here called He*) a weak bond forms with another He to form the diatomic molecule HeHe*. Construct a molecular orbital description of the bonding in this species.
plot the temperature distribution in all relevant dimensions for each side of the aluminum cylinder as a function of position for 5 different time intervals, ranging between (and explicitely including t=0 and t= infinity
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