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Explain if 12.0g of MgO react entirely with access H4P2O7 and the heat from the reaction is utilized to warm 561g of water at 25.0 Celsius, explain what will be the final temperature of water? 3MgO(s) +H4P2O7(s) Mg3(PO4)2 +2H2O(g)
What is the internal energy change for the system if 969 joules of heat flows into the system from the surroundings and 253 joules of work is done by the system on the surroundings
What is the connection between the moving mirror velocity and the frequency of these cosine waves. This data must be truncated. Give two reasons why the data must be truncated
Calculate the initial effusion rate. If this rate continued how much time would pass until the pressure dropped to 0.90 bar? (actually the rate changes with pressure- indicated why using the equations). assume values for nitrogen
If oxygen gases were collected over water at 20o C as well as the total pressure of the wet gas were 670 mm Hg, what would be the partial pressure of the oxygen
Two vessels are labeled A and B. Vessel A contains NH3 gas at 70°C, and vessel B contains Xe gas at the same temperature. If the average kinetic energy of NH3 is 7.1 10-21 J/molecule, calculate the mean-square speed of Xe atoms in m2/s2.
how many grams of aluminum oxide are produce according to thereaction below given that you start with 10.0g of al and
An unknown gas that occupies 1.00 L at a pressure of 534 torr and a temperature of 295.7 K weighs 0.9847 g. What is the molecular mass of this gas
Explain what is entropy and Why are we interested in entropy. Define what information can it tell us about chemical reactions.
Reaction between NF3, F2, and SbF3 at 200 degrees C and 100 atm pressure gives the ionic compound NF4SbF6: Nf3(g) + 2F2(g) + SbF3(g) -> NF4SbF6 (s)
Draw the mechanism (curvy arrows) for the formation of the carbocation intermediate formed from reaction of NO2+ with toluene at the ortho position, and show the resonance forms of the resulting carbocation.
what is the minimum amt of ethnaol needed to recrystallize a 2.0gsample of cmpd x?after recrystallization of the 2.0g
If a 180 mg piece of gold (density =19.32 ) is hammered into a sheet measuring 2.41.0 , what is the average thickness of the sheet in meters.
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