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Explain how much energy is released when saturated steam at 135 Celsius 80% quality condenses completely to water at that same temperature?
Later the student discovered that the percent H2O2 derived from this determination was less than the percents obtained from the second and third determinations, both performed at room temperature. Briefly explain.
One tablespoon of peanut butter has a mass of 15g. It is combusted in a calorimeter whose heat capacity is 130 kJ/degrees C. The temperature of the calorimeter rises from 22.4 degrees C to 25.2 degrees C.
What is the pH of an aqueous solution with a hydrogen ion concentration of [H ] = 9.4 × 10-7 M?
assume you dissolve 2.56g of malic acid c4h6o5 in half a liter of water 500g. calculate the molarity molality mole
If it takes 1.0 gram of solid NaOH (a strong base) to change the pH of a solution containing a strong acid from 1 to 2, how much solid NaOH (in g) would be needed to change the pH of this solution from 2 to 3? You may assume that there is no chang..
1. compare and interpret the infared spectra of4-methylcyclohexene and 4-methylcyclohexanol.2. identify the c-h
A syringe containing 1.42 mL of oxygen gas is cooled from 99.7 C to 0.6 C. What is the final volume of oxygen gas
Compute the percents ionic character of the interatomic bonds for the following compounds: TiO2, ZnTe, CsCl, InSb, and MgCl2.
Explain how the formation of a soap ‘micelle' helps remove dirt and oil in an aqueous environment.
A galvanic cell is composed of these two half cells, with the standard reduction potential shown: Co2+(aq) + 2e- Co(s) -0.28 volt Cd2+(aq)+ 2e- Cd(s) -0.40 volt The actual concentrations are: Co^2+(aq) = 0.00100M, Cd^2+= 0.100M. What is the p..
buffer solution from a solution of 0.200-M aniline, C6H5NH2, a weak base, and a solution of 0.100-M hydrochloric acid. take the pKa of aniline to be 9.13.
A 55.0-L steel tank at 20.0°C contains acetylene gas, C2H2, at a pressure of 1.39 atm. Assuming ideal behavior, how many grams of acetylene are in the tank?
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