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Question- Find the ph and concentrations of CO3^2-, HCO3^-, H2CO3 at the first equivalence point when 50ml of 0.150M carbonic acid is titrated with 0.120M NaOH. (pk1=6.351, pk2=10.329)
Solve the above problem in detail no word count
Calculate the work done in Joules when one mole of an ideal gas, initially at P = 9 atm, T = 298 K is expanded isothermally to P = 1 atm if (a) the expansion proceeds against a onstant external pressure Pext = 1 atm; (b) the external pressure is r..
Complete and balance the following equations, and identify the oxidizing and reducing agents. MnO_4^-}(aq) + CH_3OH}(aq) -->Mn^{2+}}(aq) + {\rm HCO_2H}(aq) acidic \ solution})
What is the wavelength of a light ray if its frequency is 4.64 x 1014 s-1? answer in units of nanometers (nm).
A first order reaction has a half life of 26.4 sec. How long will it take for the concentration of the reactant to fall to 1/8 of its original value
caffeine is a stimulant found in coffee and tea . a solution of caffeine in chloroform as a solvent has a concentration
Question- Using the following information determines the half life of this reaction, assuming there is a single reactant.
Sparkling wine is bottled under a CO2 pressure of 4.1 atm. The solubility of CO2 at 4.1 atm is 0.70 g/100 g H2O. What is its solubility after the bottle is opened if the partial pressure of CO2 is 3.4x 10-4 atm
how much energy in kilojoules is required to convert 195ml of diethyle ether at its boiling point from liquid to vapor
When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 13.0 oz drink from 74 degree F to 31 degree F
Calculate the change in molar enthalpy and molar internal energy when carbon dioxide is heated from 15 degrees Celsius to 37 degrees Celsius
Based on the given chemical equation, how many grams of aluminum are needed to react with 0.6 moles of hydrochloric acid? Al + HCl yields AlCl3 + H2
Match each molecule with the formal charge of the element in bold and underlined. If several resonance structures are possible, consider one which obeys the octet rule.
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