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Consider an irreversible adiabatic expansion of an ideal gas against a constant external pressure. derive a formula for the temperature change of the gas, if its volume change by dv.
Arrange these ions in order of increasing ionic radius, starting from the smallest first? N^3- , O^2-, Mg ^2+ , Na+ , F- I have been told the answer is the following: 1. N^3- (Nitrogen) 2. Mg^2 (Magnesium) 3. Na+ (Sodium) 4. F- (Fluorine) 5. 0^2- ..
Write the complete stepwise mechanism for the following reaction. Show all intermediate structures and show all electron flow using the curved arrow convention.
If 69.5 kJ of heat is applied to a 1038 g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
copperii chloride and leadii nitrate react in aqueous solutions by double replacement. write the balanced chemical
you are making a buffer. you add 57.89g of sodium methanoate to 500.0 ml of water. The molecular mass of sodium methanoate is 68.01 g/mol. The Ka of methanoic acid is 1.8*10^-4. find the pH of the buffer.
The density of the metal is 8.638 g/cm3 and the specific heat of the metal is 0.378 J/g C. If the metal foil absorbs 809.2 J of heat as its temperature changes from 21.20 C to 33.79 C, calculate the thickness of the metal foil in mm.
the average concentration of sulfate ion in seawater is 2710 mg of sulfate ion per kg of seawater. what is the molarity
Calculate the equilibrium value of Pb+2(aq) in 1.00 L of saturated PbCl2 solution to which 0.250 moles of NaCl(s) has been added. Assume that no volume change occurs.
A gaseous mixture of O2 and N2 contains 30.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 505mmHg ?
Using the following equation for the combustion of octane (C8H18) , calculate the heat of reaction (enthalpy change) when 100.0 g of octane C8H18 reacts with oxygen in a combustion reaction. The molar mass of octane is 114.33 g/mole.
A subsequent titration revealed that the concentration of the unknown acid was 0.868 M. What was the concentration of the diluted acid om the Erlenmeyer flask?
Nitrogen oxide is a pollutant that causes health problems as well as acid rain. NO naturally forms in the atmosphere in the following equilibrium reaction
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