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How many kilocalories are required to produce 1.39 mol of aluminum? 2Al2O3 yields 4Al+3O2; (delta) H = +801(kcal/mol (+3350 kJ/mol )
Calculate the volume of 1M solution of HCL needed for 1 unit shift of the pH of the following solutions: A. 100 mL of 0.01 M solution weak acid (pKa = 6) and 0.05 M of its sodium salt
What is the contribution to the internal energy from translations for an ideal monatomic gas confined to move on a surface?
How many milliliters of 0.200 M NaOH would be neutralized by the HCl produced after 60 minutes? After 90 minutes? After 120 minutes?
describe the underlying concepts of how laboratory activity works. descreption should be at least half page
Polyethylene is a polymer consisting of only carbon and hydrogen. If 2.300 g of the polymer is burned in oxygen it produces
The mass of the isotope, I-129, is 128.905 amu while the atomic mass of the contaminated iodine sample is 127.1982 amu. What is the mass of the contaminant?
Draw all the resonance structures for the N2O4 molecule. The skeletal structure of the molecule is
A mixture of C3H8 and C2H2 has a mass of 2.0 . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.5
Ammonium nitrate is a common ingredient in fertilizers that can also be used to make explosives because it decomposes as follows
Consider the following cell: Pt|H2(g, 0.645 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.20 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V, calculate the hydrogen ion con..
Draw the molecular orbitals for each geometry, using the 2s orbitals as a basis set. Give the expected ground state for each geometry.
A reactor is used to decompose toxic H2S gas (that was removed from natural and petroleum gas). The reaction is given as:H2S (v) = 2H2 (v) + S2 (l)
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