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At 25°C and 765Torr carbon dioxide has a solubility of 0.0342 M in water. Explain what is its solubility at 25°C and 1470Torr?
Compute the [H ] and pH of a 0.0020 M hydrazoic acid solution. Remind that the Ka of hydrazoic acid is 2.2 × 10-5. Utilize the method of successive approximations.
Calculate the amount of energy released per gram of hydrogen nuclei reacted for the following reaction. The atomic masses are H (with 1 neutron) = 1.00782 amu; H (with 2 neutrons) = 2.01410 amu; an electron = 5.4858 x 10^-4 amu.
If carbon dioxide gas is collected over water at 25°C and 775 torr, what is the partial pressure of the CO2? The vapor pressure of water is 23.8 torr at 25°C.
when 0.549 moles of a certain gas fill a balloon the volume is 75 ml. if enough of the same gas is added to the balloon
Tell whether each of the experimental errors in excercise will affect the melting point of the unknown component.
Find the reaction order using a Powell plot or the fractional-life method and also estimate the rate constant
The elements of Si, Ga, As, Ge, Al, Cd, S and Se are all used in the manufacture of various semiconductor devices. Write expected electron configurations for these atoms.
if in a certain experiment over a specific time period 0.0048 mol ph3 is consumed in a 2.0-l container each second of
If the experimentally determined calibration curve is Absorbance = 12100 M-1 * [ferroin (M)] + 0.00230 and the measured absorbance of a sample solution is 0.367, what is the ferroin concentration in the measured solution
the molar heat capacities of iron and gold are 25.19J/(mol*degrees celsius) and 25.41 J/(mol*degrees celsius), respectively. what is the final temperature of the water and pieces of metal?
Tungsten crystallizes in a body-centered cubic unit cell with an edge length of 317pm. Explain what is the length in pico meters of a unit cell diagonal that passes through the center atom
To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.59 mg/mL was mixed with 1.00 mL of the plant stream material, and analysis of the mixture gave a peak area of 463 for peak A and 425 for peak B. What is the concent..
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