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The oxidation of nitric oxide to nitrogen dioxide is
2NO(g) + O2(g) -> 2NO2(g)
If 100.0 mL of NO (at STP) reacts with 400.0 mL of O2 at STP, calculate the partial pressure of NO2 in the final reaction mixture.
To find the pKa of X-281, you prepare a 0.087M test solution of X-281. The pH of the solution is determined to be 2.40. What is the pKa of X-281?
An excess of AgNo3 reacts with 110.5 of an AlCl3 solution to give 0.215g of AgCl. What is the concentration in moles per liter?
A buffer solution is made that is 0.378 M in HClO and 0.378 M in KClO. (1) If Ka for HClO is 3.5E-8, what is the pH of the buffer solution. (2) Write the net ionic equation for the reaction that occurs when 0.082 mol KOH is added to 1.00 L of the ..
Using what you know about acid/base chemistry, determine the immediate effect that two 325-mg aspirin tablets would have on the pH of the stomach. Assume your stomach is half a liter in volume.
of 2.60 cm^2.if solar radition is 1150 W/m^2, how many photons strike the leaf every second.
One of the nobles gase of group was isolated in 1894 by allowing a large volume of air to react with magnesium so that the only noble gas, contaiminated with tracs of other noble gases,
Wavelength of light required to break C-C, C-Cl, O=O bonds - Calculate the frequency and wavelength of the least energetic photon that can break an average C-C bond. In what region of the electromagnetic spectrum is this radiation?
How many grams of K2SO4 are there in 243 grams of an aqueous solution that is 28.7 % by weight K2SO4.
Identify the major attractive force between each of the following atoms or molecules: a) He; b) HBr; c) SnH4; d) CH3-CH2-CH2-OH.
calculate how many liters of seawater are needed to produce 79.1 L of fresh water at 20 °C with an applied pressure of 50.0 bar.
An aerosol spray can with a volume of 456 mL contains 3.09 g of propane gas (C3H8) as a propellant. If the can is at 23°C, what is the pressure in the can? What volume would the propane occupy at STP?
It required 16ml of a sodium hydroxide solution titrated against a standard solution of 0.79g of potassium hydrogen phthalate in water to reach equivalence point. What is the molarity of the sodium hydroxide?
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