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Explain what is the pH of the solution when 18.30 mL of 0.137 M trisodium hemimellitalate (trisodium benzene 1,2,3, tricarobxylate) is mixed with 25.00mL of 0.274 M HNO3 (to two d.p.)?
pKa1= 2.88, pKa2=4.75
The molar heat capacity of SO2 is given by the following equation: Cpm= 3.093 + 6.967x10^-3 T/K -45.81x10^-7 T^2/k^2 + 1.035x10^-9 T^3/K^3. Calculate delta S for the heating of 1 mol of SO2(g) from 75C to 1350C at a constant pressure of 1 bar
Calculate the freezing point of a solution that contains 8.0 g of sucrose (C12H22O11) in 100. g of H2O. Kf for H2O = 1.86°C/m.
Proper procedure for the preparation and standardization of ~300 mL of ~1 M NaOH solution against potassium hydrogen phthalate i.e., this is an acid/base titration, It is desirable for the acid and base
From the information below, determine the mass of substance C that is formed if 45.0 g of substance A reacts with 23.0g of substance B, assuming that the reaction between A and B goes to completion.
The J=3---J=2 pure rotational transtion for the CS molecule occur at 146.831 GHZ. Calculate the bond length(in pm) for the CS molecule, assuming that there is negligible centrifugal distortion.
di ethyl ethal is a volatile, highly inflammable organic liquid that is used mainly as a solvebt. the vapour pressure of di ethyl ethal is 4.01mmHg at 18 degree celcius.
Calculate the mass of solid need to make the solution and then prepare the solutions. Explain the steps you took in making the solution.
What is the molarity of a solution made with 2.4g of LiOH (molar mass=23.9g/mol) dissolved to make 1.5L of solution
Which of the following compounds would produce a single product when treated with Cl2 in the presence of ultraviolet radiation and why A) butane B) 2-methylpropane C) 2,2,-dimethylpropane D) All would produce multiple products
What is the most important attractive forces (London dispersion, dipole dipole, hydrogen bonding) and the number of bonding domains
Starting with Benzyl alcohol (PhCH2OH), ethyl acetoacetate (CH3COCH2COOEt) and any other neccesary organic or inorganic reagents outline a synthesis
Using the ?H for the reaction of NaOH + HCl and the reaction of NaOH + NH4Cl How do you calculate an enthalpy change for reaction of HCl + NH3?
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