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If the oxalic acid in a 50.0 mL of aqueous spinach extract was titrated with 0.0250 Molarity NaOH and the 1st equivalence point was reached after 15.0 mL of standard base solution added, what is the approximate pH at the 2nd end point?
Determine the number of moles in isooctane required to produce 2.550kj of heat in the reaction below:
How do standard additions and calibration curves differ in quntification? What are the advantages and disadvantages of each?
Compound A (C11H16O) has a band in the IR spectrum at 3450 cm%u20131 (strong, broad) and does not react with pyridinium chlorochromate (PCC) in CH2Cl2
how many total moles of gas are produced? B. If each mole of gas occupies 59 L under the conditions of the explosion, how many liters of gas are produced? C. Express your answer using two significant figures. How many grams OF N2are produced in th..
A solution of sodum hydroxide is standardized against potassium hydrogen phthalate (molecular mass = 204.224 g mol-1). From the following data, calculate the molarity of the NaOH solution.
Some students wanted to react a piece of aluminum with sulfuric acid. the students wanted to make sure that they had reliable results and decided to measure their lab temperature and pressure
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the final number of microstates is 0.407 times
Calculate the volume of a sample of carbon monoxide at -60.6°C and 801 torr if it occupies 29.4 L at 372 K and 189 torr.
calculate the molar quantity of N2 that must be generated.What molar quantity of sodium azide is required to generate this much nitrogen?
If a temperature increase from 22.0 degrees Celsius to 33.0 degrees Celsius triples the rate constant for a reaction, what is the value of the activation barrier for the reaction
assume water upwelling to the surface the equation is ch230ch2o76nh317h3po4 nbsphas a total carbon concentration 2300
Treatment of ethyl isobutyrate with ethoxide in ethanol, followed by mild acidic workup, leads to recovery of starting material rather than a Claisen Condensation product. Please explain this observation, using structures rather than words as much..
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