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CH6N2 is used as liquid rocket fuel. The combustion of methylhydrazine with oxygen produces N2, CO2, and H2O:2CH6N2 (l) + 5O2(g) --> 2N2(g) + 2CO2(g) +6H2O (l)
When 4.00 g of methylhydrazine is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 25 C to 39.5 C. The heat capacity of the calorimeter is measured to be 7.794 kJ/C. Calculate the heat of reaction for the combustion of a mole of CH6N2.
An unknown solid acid is either triprotic acid or diprotic tartaric acid. To determine which you titrate a sample of solid with NaOH. A 0.956g sample requires 29.1 ml of 0.513mol L -1 NaOH solution for titration to the equivalence point. What is t..
If you have 400mL of .5 M NH3, how many moles of .47 M HCl must be added to the ammonia solution to reach the equivalence point.
How many kilojoules of thermal energy are released by the reaction of 3.41 g Al with excess oxygen? 2Al(s) + 3/2O2(g) --> Al2O3(s) delta H rnx = -1675.7 kJ
A cube of brass, 2 cm on a side, is heated until the temperature of the brass is 75oC. The cube is quickly added to 100 mL of water at 23oC. What is the final temperature of the mixture? The specific heat of brass is 0.385 J/goC.
Assume the reaction A+B-->C+D proceeds to equilibrium. Calculate the equilibrium concentration of D at 25 o C, given that the staring concentrations of A and B are 2M and delta G for the reaction is 1.0 kcal/mol. R=1.987cal/mol.K
Wet steam flows in a pipe at a pressure of 700 kPa. To check the steam quality, the wet steam is expanded to pressure of 100 kPa. The expansion process may be assumed to be isenthalpic
chloromethane gas (CH3Cl) at 20.0 degrees celsius and 0.973 atm pressure. The molar mass of a chloromethane is 50.5 g/mol.
When the gases diydrogen sulfide and oxygen react, they form the gases sulfur dioxide and water vapor. A: Express the answer as a chemical equation. Identify all of the phases in the answer. Balance the equation
Calculate all the preceeding concentrations and the weight of biomass, {CH2O}, produced. Assume no input of atmospheric CO2.
The enthalpy change for converting 10.0 g of ice at -25.0°C to water at 80.0°C is __________ kJ. The specific heats of ice, water, and steam are and respectively. For H2O, Hfus = 6.01 kJ/mol, and
if 28ml of 6.2 m sulphuric acid was spilled determine what is the minimum mass of sodium bicarbonate or sodium hydrogen
What would be the predicted effect on glutamine synthesis if a mutation is glutamine synthetase increases the Km to the micromolar range for the regulatory protein Pa but has no effect on the Km
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