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A 2.300 g sample of quinone (C6H4O2) is burned in a bomb calorimeter whose total heat capacity is 7.854 kJ.*C. The temperature of the calorimeter increases from 24.56 *C to 32.01 *C. What is the heat of combustion per gram of quinone and per mole of quinone?
in photosynthesis, plants use energy from the sun in combination with carbon dioxide and water to form glucose (C6H12O6) and oxygen. If 4.50 moles of water react with carbon dioxide, what mass of glucose is produced?
Suppose 50 mL of 0.020 M Hydhrochloric acid solution was mixed to 50 mL of 0.20 M acetic acid solution (Ka of acetic acid, CH3COOH, = 1.8 x 10-5). Determine the approximate pH of the mixture.
Erythro-2,3-dibromo-3-phenylpropanoic acid undergoes eliminiation by an E1 pathway in water solvent (Part A conditions),
A water treatment plant has a flowrate of 6,000 m3/d. Determine the following (assume filtration rate is 60 m3/d-m2): a. Total filter area
Which of the isomers of octane has only two peaks in its 13C NMR? Draw the structure of the alkane. 2. Draw the structure of the C4H9Cl isomer given the following proton NMR data:
Calculate the masses of the reactants and products of the following equation. Please show work.
The water level in a graduated cylinder initially at 221 rises to 271 after a piece of lead is submerged. What is the mass in grams of the lead?
Examining the experimental setup, the students finds an air pocket between the stopper at one end of the U-tube and the electrolyte solution inside the tube
What happens to the time at which the mid point of the breakthrough curve exists the column if the particle size is halved but the adsorption isotherm and column size stay the same?
benzoic acid in water is 6.8g per 100ml at 100 degrees c, and .34 per 100ml at 25 degrees c. calculate the minimun volume of water needed to dissolve 1.00g of benzoic acid.
A 155 mL sample of rainwater is titrated using 0.0095 M NaOH solution. If 4.8 mL of the NaOH solution was required to reach the endpoint, what was the pH of the rainwater?
Find out the concentration of this solution in a)M (molarity), b) m (molality), c) % w/w (percent by mass). If solvent =, H 2 O.
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