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A solution of malonic acid, H2C3H2O4, was standarized by titration with 0.1000M NaOH. If 20.76mL of the NaOH solution were required to neutralize completely 13.15mL of malonic acid solution, what is the molarity of the malonic solution?H2C3H2O4+2NaOH----> Na2C3H2O4+2H2O
consider the following mechanism for the formation of a dna double helix from its strands a and ba b unstable helix
Give the full electron configuration (# electrons, quantum numbers for last electron added, orbital diagram, electron configuration) for each of the following
calculate the osmotic pressure associated with 50.0 grams of an enzyme of molecular weight 98,000 g/mol dissolved in 2600 mL of benzene at 30 celsius
A student separated the components of a 2.743 g sample of beach sand. The separation yielded 0.632 g sea salt, 0.456 g sea shells, and 1.352 g sand. (A) calculate the mass percent of each component in the original mixture. (B) Calculate the total ..
if a cube with edges of 1.000 cm weighs 25.68 g what would themass of a cube of the same material with sides 2.57 cm in
The mass of iron produced by the reaction of 7.00 kg of Fe2O3 and 3.00 kg of CO is 3.55 kg. What is the percent yield? (Atomic weights: Fe = 55.85, O = 16.00, C = 12.01)
A 578 mL sample of hydrogen gas was collected over water at 25°C and a pressure of 783 torr. If the pressure of water vapor is 24.0 torr at 25.0°C, what mass of hydrogen gas (g) was collected?
Gas Chromotography/ Orange oil experiment. Limonene (L) and internal Standard Anisole (A) Were used and needed to find the Wt% of L in a given orange oil sample.
a solution containing 82.0 g of ascorbic acid dissolved in 230 g of water has a density of 1.22 gml. calculate the
Azulene has an appreciable dipole moment. Write resonance structures for azulene that explain this dipole moment and that help explain its aromaticity.
Predict the products and show the reaction mechanism for the acid catalyzed Fischer esterification reaction between ethanol and acetic acid (CH3CO2H)
How much hexanol was in the sample represented by this chromatogram? ( chromatogram shows retention time for butanol to be 10 min and retention time for pentanol to be 20min.
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