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The product in the 3rd step of this multi-step synthesis, p-aminobenzoic acid (PABA), was a common ingredient in sunscreen lotions. PABA is such an effective sunscreen due to the many resonance structures that can be drawn for this molecule. Draw the structure of p-aminobenzoic acid, and show all important resonance structures for this molecule.
Use the Variational Principle a to estimate the ground state energy of a harmonic oscillator with un-normalized trial wavefunction φ(x)=1/(1+βx2)2 where β is a paramete
What is the percent hydrogen (H) by weight of a solution containing 53.5mL of CH3COCH3? The density of acetone is 0.788 g/mL
Which choice correctly describes the electron pairs in the valence shell of the central atom in a molecule of Cl2O?
Often reactions of tertiary alcohols or tertiary alkyl halides result in elimination reactions and not substitution reactions
Calculate the work done on a 2500. kg car in accelerating it from rest to a speed of 100. km/hr.
a hemoglobin A1c that is slightly lower than normal. a slightly lower than normal release of insulin in reps once to increases in glucose
what is the complete mechanism and product for reacting phthalimide
A 1.724 M solution of a compound in water has a density of 1.281 g/mL at 20°C. The compound has a molar mass of 62.30 g/mol.
What is the molarity of 2500. mL of a solution that contains 160. grams of NH4NO3?
The volume of a mass of gas is 300ml at 25 degree celcius and 685 torr.
How much ice (in grams) would have to melt to lower the temperature of 355 mL of water from 26 degrees C to 6
If the average human body discharges 536 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft? Answer in units of mol.
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