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Question- Calculate the pH at the equivalence point for the titration of 0.230 M methylamine (CH3NH2) with 0.230M HCl. The Kb of methylamine is 5.0* 10^-4 M.
Mention step wise computation of your work done
How much ice (in grams) would have to melt to lower the temperature of 355 mL of water from 24 C to 6 C (Assume the density of water is 1.0g/ml.
A sample of N2O3 (g) has a pressure of 0.017 atm. The temperature of (in K) is then doubled and the N2O3 undergoes complete
Provide the structure of a (D-b-talopyranose)-( D-b-talopyranose) disaccharide that cannot undergo mutarotation.
This diluted sample is placed in a variable pathlength cell. The absorbance of the reference and the sample solutions match when the pathlength is 2.55 cm. 1) What is the concentration of iron in the well water. For each solution the zero is set wi..
To 333 milliliters of a 0.120 molar Pb(NO3)2 solution, 0.667 milliliteres of 0.435 molar KIO3 is added. Calculate the concentrations of Pb+2 and IO3- in the solution at equilibrium.
If 750 ml of a certain solution contains 50 g Na2SO4 the sodium ion concentraions [Na+], is what
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If the average speed of an oxygen molecule is 4.43 multiplied by 104 cm/s at 25°C, what is the average speed of a CO2 molecule at the same temperature?
you conduct an experiment where n2 is collected over water in a 2.12 l flask at 23.oc. at the conclusion of the
Imagine a person accidentally swallows a drop of liquid oxygen, which has a density of 1.149 g/mL. Assuming the liquid drop has a volume of .075mL, calculate the volume that would be produced when the liquid vaporizes in the person's stomach at 37..
a 1.00 L solution contains 4*10^-4 M Cu(NO3)2 and 1.6*10^-3 M ethyleneddiamine. the Kf for Cu(en)2^2+ is 1*10^20, what is the concentration of Cu+2 in the solution
How much energy is needed to raise the temperature of 16.0g of gold by 17.0degrees C, Answer in units of J
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