How many kilojoules of heat are absorbed
Calcium carbide (CaC2) can be made by heating calcium oxide (lime) with carbon (charcoal).? CaO(s) + 3 C(s) + heat As†' CaC2(s) + CO(g) Î"H = +464.8 kJ
How many kilojoules of heat are absorbed in a reaction in which 65.6 g C(s) are consumed?
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Write a suitable mechanism for the cleavage of butyl isopropyl ether with HI at 100 degrees C to form exclusively isopropyl alcohol and 1-iodobutane. Explain why butyl alcohol and isopropyl iodide are not formed in the reaction.
The equilibrium constant for the hydrolysis of the dipeptide alanylglycine by a peptidase enzyme is K = 8.1 x 102 at 310 K. Calculate the standard reaction Gibbs energy for the hydrolysis.
A 2.32 mol sample of an ideal monatomic gas undergoes the reversible process shown in the figure. The scale of the vertical axis is set by Ts = 447 K and the scale of the horizontal axis is set by Ss = 11.5 J/K. How much work is done by the gas?
Degrees Celcius, and the heat loss from the water during heating can be neglected. What is the time it takes to heat the water to the desired temperature?
Tetrafluorethylene (C2F4) effuses at rate of 4.6X10^-6 moles per hour. Unknown gas effuses at rate of 6.5X10^-6 moles per hour. under identical conditions, what's the molar mass of the unknown gas?
The equilibrium constant Kp is 158. Analysis shows that the partial preassure of O2 is 0.25 atm at equilibrium. Calculate the pressure of NO and NO2 in the mixture.
How many grams of Mg(OH)2 will be needed to neutralize 25 mL ofstomach acid if stomach acid is 0.10 M HCl ? How many mL of a 0.10 M NaOH solution are needed to neutralize15 mL of 0.20 M H3PO4 solution?
Sulfur reacts with oxygen to produce sulfur dioxide, but only if the high activation energy is supplied. Which condition will lower the activation energy the most?
What is the final temprature of 0.1222 mol of a perfect monatomic gas that preform 75 J of work adiabatically if the initial temprature is 235 C?
If 0.145g of this metal carbonate reacts completely with.125L of HCl(aq) with a pH of 1.56, what is the identity of the metal in this carbonate?
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