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Assume that a particular process evolves 224 kJ of heat and that 35 kJ of PV work is done on the system at constant pressure. What are the Enthalpy Change & The Internal Energy Change for this process?
What is the solubility of MnS, in grams per liter, in a buffer solution that is 0.115M HC2H3O2 - 0.490M NaC2H3O2 ? For MnS, Kspa=3x10^7
Suppose that a 2.00-L metal bottle that contains air at 113K and 2.5 atm pressure is sealed off. If we inject 60.0 mL of liquid helium and allow the entire system to warm to room temperature (25°C), what is the pressure inside the bottle?
Predict the major product of the reaction between N-propylacetamide and sodium benzoate upon heating at 140C
If the temperature of 150.0g of water increased from 23.3C to 44.8C, how much heat was absorbed.
Consider the reaction CaCN2 + 3 H2 O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
A sample of a gas occupies a volume of 323 mL at 625 torr. At constant temperature, what will be the new volume when the pressure changes to the following:
What is the vapor pressure of isopropanol at 200 C if its molar volume calculated by a first order virial expression
What is the internal energy (U) change of a system that emits 358 J of heat and receives 412 J of work
Describe each reaction and provide the name of all the chemical formula involved for each number.
the lab was synthesizing acetyl ferrocene from acetic anhydride and ferrocene then doing column chromatography on it if you wanted to modify the experimental procedure to synthesize diacetylferrocene, what changes might you consider?
A weak acid (HA) has a pKa of 4.999. If a solution of this acid has a pH of 4.459, what percentage of the acid is not ionized
A buffer is made by mixing HCN and KCN to give a solution whose pH is 9.49. If the KCN molarity is 0.20 M, what is the molarity of the HCN?
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