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Calculate the theoretical and percent yields if 934 grams of sucrose (C12H22O11) react and 493 grams of ethanol (C2H5OH) are actually produced. The fermentation of sucrose is: C12H22O11 + H2O -> 4CO2 + 4 C2H5OH.
What is the concentration of a solution that has 2.79 g of Co(NO3)2 dissolved into enough water to give a total volume 125 mL
2NOCl(g) → 2NO(g) + Cl2(g) ,At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr.
A calorimeter that contains 2500 g of surrounding water is used to measure the heat associated with the reaction of 520 g of a reactant. Calculate the energy, in joules per kilogram of reactant, associated with the reaction
The container is then cooled to 22.5 degrees C. One now finds that the gas pressure inside the container is 0.871atm. What mass of mercury(II) oxide was originally placed into the container
How do you determine number of rings, double bonds, or triple bonds from degrees of unsaturation. For example a substance C8H8 has 5° degrees of unsaturation, so determine the number of rings and double bonds
Compute the difference in pressure between CH4 and an ideal gas if 14.0 moles of gas are in a 6.00 litres tank at the temperature of 21.1 degree celsius . The van der Waals constants for CH4 are a =2.300 L^2 x atm/mol ^2 and b=0.0430 L/mol.
How many grams of water would you add to 1.00 kg of 1.34 m CH3OH to reduce the molality to 1.00 m CH3OH
a student begins a kinetics experiment with a solution containing 0.050 starch. at time zero t 0.00 min the student
consider the following reaction 4hcl o2 ---gt 2h2o 2cl2. how many molecules of would be formed from the reaction
Enough of a monoprotic acid is dissolved in water to produce a 0.0155 M solution. The pH of the resulting solution is 2.43
What is the oxidation number of Mn before and after the reaction
The equilibrium system H2 + I2 ? 2HI has equilibrium constant K = 6.2. Starting from the nonequilibrium state [H2] = 0.3 M, [I2] = 0.5 M, and [HI] = 0.7 M, what are the concentrations of the three molecules when equilibrium is established
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