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Assume you are performing the calibration step of Experiment 8 and you begin with 20 g of water at 20 oC and 20 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment, you determine the temperature of the mixed portions of water to be 45 oC. What is the heat capacity of the calorimeter?
Mass: 7.30*10^4 kg Al(s) Mass: 6.10*10^5 kg Oxygen (reacts with hydrogen to form gaseous water) 10 Al(s) + 6 NH4ClO4(s) --> 4Al2O3(s) + 2 AlCl3(s) + 12 H2O(g) + 3 N2(g) Assuming Aluminum and Oxygen are limiting, determine total energy. Delta Hf of..
Show by explicit integration that the 1s and 3s wave functions of the hydrogen atom are orthogonal. Note that in integrals over r
Calculate the molality of a solution that is prepared by mixing 25.5 Ml of CH3OH (d=0.792 g/ml ) and 387 mL of CH3CH2CH2OH ( d=0.811g/mL
What percentage of total HF molecules are in each of the first 6 rotational levels (J = 0-5) at 25oC ? Howmany levels (values of J) are required to account for 99% of all HF molecules at this temperature
what is the molar heat of vaporization in kilojoules per mole if its vapor pressure at 20C is 540 torr?
What name (label) is given to the hybridized orbitals of SF6. Explain how this label applies to the orbitals of the free atoms.
The titration of a 0.1000 M HOCl (hypochlorous acid) is done using 0.1003 M NaOH. If a 25.00 mL aliquot of acid is used, determine the volume of NaOH required to reach the equivalence point
A solution is made by mixing 8.00 (millimoles) of and 1.00 of the strong base. What is the resulting pH?
Assuming the kinetics of teh microorganisms enzymatic action is responsible for the rate of decay
What is the percentage ionization of the acid? What is the value of Ka for the acid? 2) Periodic acid, HIO4, is an important oxidizing agent and a moderately strong acid. In a 0.20 M solution
A box of nails contains 90 straight nails and 10 nails too bent to be used. You randomly select 10 nails from the box. What is the probability that you removed 8 straight nails and 2 bent nails? To find the probability, first derive a general expr..
The temperature outside is 15 degrees celsius, and the air pressure is 0.700 atm. Your neighbor, who released the balloon, tells you that he filled it with 4.20 moles of gas. What is the volume of gas inside this balloon
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