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A reaction takes place inside a constant volume or BOMB calorimeter. Pressure is not constant during the reaction. The heat absorbed by the calorimeter is measured to be +15J. Which of the following is true?
A)Erxn = 15JB)Hrxn = 15JC)w = 0D)Erxn = 0E)qrxn = -15JF)q = wG)Erxn = -15JH)Hrxn = -15J
Find delta E, delta H, q, and w for the change in state of 1.0 mol H2O(l) at 84 degree C to H2O(g) at 109 degree C. The heat capacity of H2O(l)= 75.3 J/molK, heat capacity of H2O(g)= 25.0 J/molK, and the heat of vaporization of H2O is 40700 J/mol ..
A wastewater disposal well for carrying various wastes at different times is drilled into a formation of limestone (CaCO3), and the wastewater has time to come to complete equilibrium with the calcium carbonate before leaving the formation through..
A 5.00mL sample of sulfuric acid is titrated with 0.1198M aqueous sodium hydroxide. If 33.93mL of the basis required to reach the end point of the titration
the curie ci is a commonly used unit for measuring nuclear radioactivity 1 curie of radiation is equal to 3.7 1010
A gaseous mixture of O2 and N2 contains 37.8% nitrogen by mass. what is the partial pressure of oxygen in the mixture if the total pressure is 325 mmHg
Neglecting the contribution of end groups to polymer molar mass, calculate the percentage conversion of functional groups required to obtain a polyester with a number-average molar mass of 24,000 g mol-1 from the monomer HO(CH2)14COOH.
calculate the uncertainty in nm in the position of an electron with the velocity of 2.00x103 ms the velocity is the
the reaction shown below occurs and the temperature of the resulting solution rises from 22.00°C to 61.16°C. If the specific heat of the solution is 4.18 J/(g ? °C), calculate delta H for the reaction, as written. Ba+2H2O--->Ba(OH)2+H2 Delta H?
A lead fishing weight with a mass of 68 g absorbs 146 cal of heat. If its initial temperature is 56°C, what is its final temperature.
Give two reasons why the product is concentrated in the distillation flask during a continuous solid-liquid extraction. 2) what difficulties may be encounter during the determination of the melting point of caffeine?
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA-, A2-) at pH 8.44
List all the ionic species present (before any solution occurs) when the following solutions are mixed together: Ni(NOsub3)sub2(aq) and CaClsub2(aq)
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