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The enthalpy of formation of water is -241.8 kJ/mol. Explain how much heat is released while 1g of hydrogen reacts with excess oxygen to form water?
What type of hybridization is used on the central atom in CHCL3?
Show how to make N-methylpropionamide using propionic acid and methylamine and other necessary reagents. The methylamine and propionic acid do not both have to be used in the first step.
Consider a steel tank whose volume is 49.0 L and which contains O2 gas at a pressure of 18100 kPa at 29°C. What volume would the gas occupy at STP?
A 4.0L sample of N2 (g) at 760 mmHg is compressed, at constant temperature, to 3.2atm. What is the final gas volume
If you plot the volume of a sealed gas sample versus its temperature in degrees C, at what T in degrees C will V=0 if you extrapolate the data
The rate constant for a reaction at 40.0 degrees Celsius is exactly 3 times that of 20.0 degrees Celsius. Calculate the Arrhenius energy of activation for the reaction.
What are the effects of temperature, molarity, surface area, nature of the reactants, and the presence of a catalyst on the reaction rate of Zn(s)+2HCl(aq)-> ZnCl2(aq)+ H2(g)
exhales 30.0 times per minute, that the exhaled air is at a pressure of 1.00 atm, and that the air behaves as an ideal gas. Calculate the time in hours before a fire fighter using such an air tank runs out of air.
How many grams of CO2 are produced by the complete combustion of 2.00g of C8H18?
An aqueous solution of CaCl2 has a vapor pressure of 83.0mmHg at 50 C . The vapor pressure of pure water at this temperature is 92.6mmHg .
1.285g sample of Na2SO4 is exposed to the atmosphere and found to gain 0.393g in mass. What is the percent, by mass, of Na2SO4*H2O in the resulting mixture of anhydrous Na2SO4 and the decahydrate
potassium iodate reacts with potassium iodide and hydrochloric acid to produce iodine water and potassium chloride.
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