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871 test of an unknown acid requires 32.9 mL of a .187 Mbarium hydroxide solution for neutralization. Assuming the acid is diprotic, Compute the molar mass of the acid.
What mass of heptane, C7H16, is required to produce 90.2 kJ of heat at constant pressure from its combustion in excess oxygen
Without consulting entropy tables, predict the sign of Delta S for the following process and choose the correct reasoning for your prediction: N2(g, 10 atm) ----> N2(g, 1 atm). The mass of N2 remains constant.
What concentration of the salt NaC2H3O2 must be added to shift the equilibrium toward the reactants so that the [H3O+] concentration is reduced to pH = 5.5
What is the velocity of a singly charged benzene ion (m = 78 Da) after acceleration? e = 1.60 x 10^-19 C
used the 8900 kilojoules you expend in energy in one day to heat 50000 of water at 20 what would be the rise in
Enthalpies are relative quantities measured as changes from some comparative states. The enthalpies of formation of elements in their standard states at 25 degrees celcius are taken to be zero by convention
ionization energy involves completely removing an electron from an atom. what wavelength of light is required to remove
For our experiment we put 5 mL of red Kool-Aid in an empty 25 mL volumetric flask, we then slowly added water until it reached the 25 mL mark in the flask and recorded our observations. Obviously the red Kool-Aid was diluted by the water making it..
An equilibrium mixture in a 2.00 L vessel is found to contain 0.0406 mol CH3OH, 0.170 mol CO, and 0.302 mol H2 at 500 K. Calculate Kc at this temperature.
the concentration of nitrogen in water at 25degc was determined to be 7.2 times 10-6 m. calculate the partial pressure
Why did the book suggest using a Hirsch funnel? What would be the benefit of using a Hirsch funnel?
a) when 34.0g of NH3 reacts with 96.0g of O2 what is the partial pressure of NO in the sealed container?
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