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What is the pH of a 2.025 M solution of the weak acid H3A? [Note: H3A has K1=3.429x10-6, K2=2.914x10-10, and K3=6.738x10-12
a weather baloon is filled with 195.0 L of He and launched from sea level. The baloon is designed to continue its ascent to an altitude of 30 km. If the atmospheric pressure at 30 km is 28.0 torr and temp is 41 C, what is the volume of the baloon ..
There are two sources of oxaloacetate for entry into gluconeogenesis. how could you experimentally determine the relative contribution of each of these sources to the overall flux oxaloacetate through gluconeogenesis? Draw out your experiment.
a solution is prepared by adding enough water to 387 g of CsCl to form 1 liter of solution. What is the mass of the solution? the density of the solution is 1.384 g/mL.
how much energy is required to vaporize 48.7 g of CH2Cl2 at its boiling point if its Hvap = 31.6 kg/mol
How many grams of acetic acid acid, CH3COOH, are required to make 350 mL of an aqueous solution with a pH of 2.40? (Ka = 1.8 x 10^-5 for acetic acid)
Find the volume if Zinc Coating(both sides) the thickness of Zinc Coating in cm (both sides) and the thickness of Zinc Coating in cm (one side)?
What is the energy uncertainty associated with a short pulse of laser light that lasts for only 4.8 femtoseconds (fs)? Suppose the low energy end of the pulse had a wavelength of 727 .
If I have 7.6057 grams of helium gas held at a temperature of 5 atm and in a container with a volume of 50 liters, what is the temperature
To find the of X-281, you prepare a 0.086 test solution of X-281. The pH of the solution is determined to be 2.70. What is the of X-281
Determine the mass of CO_2 produced by burning enough carbon (in the form of charcoal) to produce 490 kJ of heat.
Clearly explain, using calculations as necessary, how you would obtain the 5 mL of 1.5M sodium hydroxide that you need
Free radicals are also important in many environmentally significant reactions. For example, photochemical smog, which forms as a result of the action of sunlight on air pollutants, is formed in part by the following two steps.
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