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1. Propose an extension experiment that would allow you to determine the concentration of ethanol in alcoholic beverages using the information collected from this lab. In the lab, we determined the Keq for the equation CH3CH2OH + NAD+ ---> CH3CHO + NADH + H+ we got the Keq to equal 1.4 X 10^-2
what will be the heat capacity of a constant pressure, coffee-cup calorimeter that contains 100.0 ml of 3.0 M HCl solution? the density of the sloution is 1.098 g/mL, the specific heat capacity of the HCl solution is 4.1 J/gK and the heat capacity..
Addition of bromine to 130 mg of trans-stilbene gave 200 mg of meso-dibromide. Calculate the percentage yield.
How much HCl gas can be produced at STP by reacting 198 g of NaCl with excess H2SO4?NaCl + H2SO4 ! NaHSO4 + HCl.
What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 11.8 m/s when going down a slope for 3.61 s? (b) How far does the skier travel in this time
Lactic acid, C_3H_6O_3, is found in sour milk. A solution containing 1.00 g NaC_3H_5O_3 in 100.0 mL of 0.0500 M C_3H_6O_3 has a pH = 4.11. What is Ka of lactic acid
The presence of a carboxyl band near 1640 cm-1 and two bands near 3000 cm-1 is good evidence of an alcohol B) The presence of a sharp, medium intensity band near 2720 cm-1 and a strong carbonyl band near 1700 cm-1 is good evidence of an alcohol
Calculate the number of photons emitted in one second by a 6 W laser operating at a wavelength of 438.0 nm
The molar mass of cellulose is approximately 6.0 x 10^5 g/mol and the molar mass of a soluble starch is on the order of 4.0 x 10^3 g/mol. The monomer unit in both of these molecules has the emperical formula C6H10O5.
What is the concentration (in M) of the chloride ion when 18.2 mL of a 0.503 M solution of sodium chloride is combined with 18.9 mL of a 0.504 M solution of iron(III) chloride? Assume the volumes are additive.
describe the change in conductivity as the concentration of the NaCl solution was increased by the addition of NaCl drops
Problem- A) For 490.0mL of pure water, calculate the initial pH and the final pH after adding 0.020mol of HCl. Express your answers using two decimal places separated by a comma.
Question- What is the density (in g/cm3) of a fictitious elemental solid which packs in a body-centered cubic unit cell with an atomic radius of 144 pm and a molar mass of 157 g/mol?
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