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Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.140 M HClO (aq) with 0.140 KOH (aq):
a. After the addition of 30.0 mL of KOH
b. After the addition of 50.0 mL of KOH
c. After the addition of 60.0 mL of KOH
ferrocene a substance used as a gasoline additive but which is also being studied because it shows some anticancer
There are over fifteen isotopic forms of sulture. one of those isotopes is sulfur-29 (amu=28.99) What is the binding energy for one mole of sulfure-29, given the masses of a proton, a neutron, and an electron are 1.007276u, 1.008666u, .000548u
We did a lab in Chem where we put a liquid into a flask, secured foil on the top and poked a hole in the foil so the vapor could push out the air
If the measured gas pressure in a collection flask during a gas-forming reaction was determined to be 1.44 atm, and the atmospheric pressure that day was measured as 0.95 atm.
what wind flow rate entering the canyon would produce a pollutant concentration greater than 0.0025 gmol/ft^3 in the air coming out of the canyon?
How many grams of NaCl must be added to 250g water to lower the vapor pressure by 1.30 mm Hg at 40 degrees C assuming complete dissociation?
Describe the type of bonding that your unknown has (covalent, polar covalent). Locate and show any dipoles in your compound
A solution of sodium hydroxide is prepared by mixing 2.00g of NaOH with 10.0g of water. The percent, by mass of NaOH is what?
The room temperature and pressure were 23.6 deg C and 763.4 mm Hg respectively. The residue had a mass of 3.1915 grams. What was the partial pressure of oxygen?
where b and R are constants. If the pressure and temperature are such that Vm = 10b, what is the numerical value of the compression factor?
A peanut is burned in a calorimeter made from an aluminum can. The peanut weighed 0.780 g before combustin and .054 g after combustion. The temperature change of aluminum can filled with 200 ml of water was 15.3. (Density of water = 1.00g/C)
What is the equilibrium partial pressure of NO in the air at 1000K if the partial pressure of nitrogen is 0.80bar, the partial pressure of oxygen is 0.20 bar and delta G for the following reaction is 77.772kj/mole. 1/2N2(g) + 1/2 O2(g)----NO (g)
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