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If a constant pressure calorimeter having a heat capacity of 66.5 kJ/K is utilized to measure the energy released from burning a compound in excess oxygen to form CO2(g) and H2O(l). Explain if the enthalpy of combustion of the compound is -3298.0 kJ/mol as well as the temperature of the calorimeter rises from 25.14 C to 27.9 C, Define how many moles of the compound were oxidized?
How many grams of dry need to be added to 1.50 of a 0.600 solution of ammonia, , to prepare a buffer solution that has a of 8.59? for ammonia is.
Calculate the partial pressure of carbon dioxide in the associated soil atmosphere.
The rate constant are 0.039 L/mol-1*s-1for the forward reaction (CO2 + H2O ? H2CO3) and 23 s-1for the reverse reaction (H2CO3 ? CO2 + H2O). What is the order of the reverse reaction
Calculate the amount of heat transferred when 24.0 of is decomposed by this reaction at constant pressure.
solution if its conjugate acid. What is the pH of this combined solution? Always give two numbers after the decimal place
Each copper(II) sulfate unit is associated with five water molecules in crystalline copper(II) sulfate pentahydrate (CuSO45 H2O). When this compound is heated in air above 100°C, it loses the water molecules and also its blue color.
Write the element symbol and charge. How many unpaired electrons are there in the ground state of this ion
Explain is there a relationship between the presence or absence of solution color and the ionic radius of the metal ion
Calculate the molarity and the molality of an NH solution made up of 28.0 g of NH in 70.0 g of water. The density of the solution is 0.982 g.
Is there any time when doing an electron configuration for positive or negative transition metal ions where the electrons will be taken out of the s orbital before the d orbital is empty
How many grams of sucrose must be added to 320g of water to lower the vapor pressure by 1.5mm Hg at 25 degrees Celcius? The vaporpressure of water at 25 degrees Celcius is 23.8mmHg
Assuming you have avaiable to you a 50.0 g sample of glass (c=0.0837 J/g C) and a 50.0 g sample of iron (c=0.0452 J/g C). Both samples start at room temperature, 24.3C. If 500. joules of heat were added to each of these samples,
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