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Ammonia gas is condensed at its boiling point at 1.01325 bar at -33.4c by the application of a pressure infinitesimally greater than 1 bar. To evaporate ammonia at its boiling point requires the absorption of 23.30 kl/mol. Calculate
a) wrev per mole,
b) q per mole,
c) Δ u,
d) Δ h.
Which molecular species would be necessary for the formation of the product in the reaction; a primary carbocation, a tertiary carbocation, a primary carbanion, a secondary carbanion or SO4?
For the first-order reaction 2N2O5 ---> 2N2O4 + O2, the activation energy is 106kJ/mol. How many times faster will the reaction go at 100 degrees C than at 25 degrees C?
How many grams of CaH2 are needed to generate 53.5 L of H2 gas if the pressure of H2 is 1 atm at 194 C.
Solid Carbon dioxide goes directly from a solid to a gaseous state at -78 C cacualte the amount of heat required for sublimation of 30.5g of dry ice
compound has been analyzed and found to contain the following masses of elements: Carbon 0.2990g, hydrogen 0.05489g, nitrogen 0.2318g, and oxyen 0.1328g. calculate the tmpirical formula of the compound.
When a 1.50x102 g strip of zinc is dropped into a large beaker containing excess hydrochloric acid, how many grams of gas are formed?
If phenolphthalein is used as an indicator for titrating Ca(OH)2 with titrant HCl instead of methyl orange, which is the recommended indicatory
Calculate the concentration of sodium ion in a solution made by diluting 350.0 mL of 3.00 M sodium carbonate to a total volume of 2.00 L.
Chemical Structure and Hydrogen Bonds in Base Pairs, Draw the chemical structure of a correctly base paired G-C pair, then re-draw the pair with a propeller twist these answers should all be on one page following box G.
name the four general types of carbonyl reactions. give an example of each including a detailed mechaism. use a propyl group next to a carbonyl in each example.
When 50.0 mL of 0.50 M formic acid is titrated with 0.50 M sodium hydroxide, calculate the pH for each of the following: Ka of formic acid = 1.8 x 10^-4 Be sure to account for volume changes at each step.
how many grams of sodium benzoate should be added to prepare the buffer?
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