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Write the balanced net ionic equation for the following reaction with states, and determine the conjugate acid-base pairs.
HNO3(aq) + Li2CO3(aq) <--> LiNO3(aq) + LiHCO3(aq)
What are the advantages of working with microscale equipment as opposed to larger equipment in a Williamson ether synthesis of phenacetin experiment.
If all the species are at standard conditions except [H+], at what pH will this reaction have a potential of zero? The standard reduction potentials are 1.78 V for H2O2 and 1.36 V for Cl2.
Benzoic acid, HC7H5O2, is a weak monoprotic acid. 10.81 g of sodium benzoate, NaC7H5O2, which is the conjugate base, is placed in a 0.500 L beaker and its pH is measured. It is found the pH of the solution is 8.69.
A biochemical engineer isolates a bacterial gene fragment and dissolves a 14.7 mg sample of the material in enough water to make 36.5 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
The enthalpy of formation of ethanol, C2H5OH, is -277.o kJ/mol at 298.15K. Calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 and H2O
a chemistry student has made some stock 0.2 moll potassium permanganate solution. he wants to make 800 ml of 0.04 moll
Suppose you have 260.0 mL of a 0.320 M NaC2H3O2 solution. You add 260.0 mL of a 0.320 M HCl solution to it. What is the new pH. If you added an additiional 40.0 mL of a 3.20 M HCl solution to the aboe solution, what is the new pH.
The acid-dissociation constant for an acid-base indicator HIn is 0.0000438. At 600 nm, the molar absorptivities are 2230 for HIn and 8900 for In-. Calculate the absorbance at 600 nm of a 1.00 x 10-4 M solution of the indicator at pH 4.81 in a 1.00..
Consider 4.30 L of a gas at 365 mmH and 20 degrees C. If the container is compressed to 2.40 L and the temperature is increased to 39 degrees C, what is the new pressure, P2, inside the container
a solution of 75 ml of 0.2 m nh3 is titrated with 50 ml of 0.5 m hno3. what is the ph of the resulting solution when 17
a particular flask has a mass of 17.4916 grams when it is empty. when has mass of the flask is 43.9616 grams filled
What is the purpose of washing the alkyl halide with aqueous sodium bicarbonate (NaHCO3)? Write the reactions that are expected to occur when the sodium bicarbonate is added to the test tube. Why is it important to add the sodium bicarbonate slowl..
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