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Formic acid, HCOOH, is a weak electrolyte What solute particles are present in an aqueous solution of this compound? Write the chemical equation for the ionization of HCOOH.
HA+NaOH=NaA+H2O stating with 0.20mol HA and 0.08 mol NaOH. the mixture was diluted to a total volume of 1L and the pH was measured to equal 4.8, what is the Pka of the acid
How do you find the ratio of the cis and trans isomers from the H NMR spectrum?
For the reaction 2HI(g) H2(g) + I2(g), Kc = 0.290 at 400 K. If the initial concentrations of HI, H2, and I2 are all 1.50 × 10-3 M at 400 K, which one of the following statements is correct
If K sub a is 1.85 x 10^-5 for acetic acid, calculate the ph at one-half the equivalence point and the equivalence point for a titration of 50 ml of 0.100 M NaOH.
Describe the major absorption bands in the IR spectrum - indicate the bonds responsible for those peaks which prove you have synthesized isopentyl acetate and that it is an ester.
Explain what experimental method would you suggest for the preparation of t-butylbromide. Define by writing a reaction
Calculate Hrxn for the reaction below. Ca(s) + 1/2 O2(g) + CO2(g) CaCO3(s) You are given the following set of reactions. Ca(s) + 1/2 O2(g) CaO(s) H = -635.1 kJ CaCO3(s) CaO(s) + CO2(g) H = 178.3 kJ kJ
What is the sign of the entropy change for the heat transfer. You probably know that when two objects at different temperatures are brought into contact, heat always travels from the hotter object to the colder object; never the reverse.
125 mole of oxygen gas is added to carbon in a .25L container. The mixture equilibriates at 500K. Calculate the equilibrium concentration of carbon monoxide, knowing that K=.086 at 500K.
The enthalpy of combustion of methane, Ch4, is -890 KJ/mol. If the gas flow rate of the methane to the burner of a stove is 5 L/min at 25 degrees celsius and assuming complete heat transfer from combustion
What is the difference between a common name, IUPAC name, a name in an international journal, and a name in an American journal? I understand how to do IUPAC names, but then I am confused at the rest.
hydrazoic acid (HN3, Ka = 1.900x10-5) with 0.08699 M KOH, what is the pH after 92.88 mLs of titrant have been added
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