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Given that benzoic acid is a meta- director, draw all three resonance structures for the carbocation intermediate that results from STEP 2 in the electrophilic aromatic substitution reaction when benzoic acid reacts with Br2 in the presence of FeBr3. Need some help here, I only got one attempt left so please only respond if know the right answer
The bromocresolgreen end point of the titration was reached after the addition of 30.00 mL of hydrochloric acid solution. Calculate the concentration of the acid solution.
A chemist studying the properties of photo- graphic emulsions needed to prepare 500 mL of 0.18 M AgNO3 (aq). What mass of silver nitrate must be placed into a 500 mL volumetric ?ask, dissolved, and diluted to the mark with water? Answer in units o..
A gaseous mixture of O2 and Kr has a density of 1.140 g/L at 415 torr and 300. K. What is the mole percent O2 in the mixture?
Ttotal ammonia concentration = 0.400 M. determine What is the concentration of NH 4 + ?
calculate the molarity of acetic acid in a vinegar sample knowing that 5.00 mL of vinegar requires 43.50mL of 0.105M NaoH to just reach the phenolphtalein endpoint in a tritration
The atomic weight of a newly discovered el- ement is 98.225 amu. It has two naturally occuring isotopes. One isotope has a mass of 96.780 amu. The second isotope has a per- cent abundance of 41.7%. What is the mass of the second isotope?
Please review the occurrence and cycling of calcium in nature, along with its use. Analyze and evaluate the article as to it's contemporary relevance regarding the elements availability, health implications and environmental impact.
A 1.80-L flask is filled with propane gas (C3H8), at 1.00 atm and -19.4°C. What is the mass of the propane in the flask.
calculate the amount of heat in kJ absorbed if a 200-g sample of water is heated from 22.8 degrees celsius to 41.5 degrees celsius with the specific heat of water being 4.184 J/ g degree celsius
How many grams of ethylene glycol C2H6O2 must be added to 1.15kg of water to produce a solution that freezes at -3.68 degrees celsius?
A backpacker wants to carry enough fuel to heat 2.9 kg of water from 27 degrees C to 100.0 degrees C. If the fuel he carries produces 36 kJ of heat per gram when it burns, how much fuel should he carry? (For the sake of simplicity, assume that the..
What is the value of x in the formula for the hydrate? (hint: remember that x represents the ratio of moles of H2O to moles of hydrate compound, and that moles of hydrate compound equals the moles of anhydrous compound)
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