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If the percent yield for the following reaction is 75.0%, and 45.0 g of NO2 are consumed in the reaction, how many grams of nitric acid, HNO3(aq), are produced. 3 NO2(g) + H2O(l) ? 2 HNO3(aq) + NO(g)
How much more extra of the insufficient reactant would be needed to completely react with the excess remaining of the other reactant. (N = 14, H = 1, Cl = 35.5)
A buffered solution is made by adding 50.9 g NH4Cl to 1.00 L of a 0.75 M solution of NH3. Calculate the pH of the final solution. (Assume no volume change.)
At 8:00 a.m., a patient receives a 58-mg dose of I -131 to obtain an image of her thyroid. If the nuclide has a half-life of 8 days, what mass of the nuclide remains in the patient at 5:00 p.m.
Calculate the amount of heat required to completely sublime 23.0g of solid dry ice (CO2) at its sublimation temperature
gold-198 is a beta emitter with a half-life of 2.7 days. what percentage of a gold-198 sample remains after 13.5 days?
An aqueous solution freezes at -3.04 degrees celsius. What is the molality of the solution. Assume that there is no dissociation of the solute and that k_f is 1.5 K * kg/mol.
In standardizing a solution, what would happen if instead of putting HCl solution into a buret and standardized NaOH solution into a beaker when performing a titration
Copper (II) hydroxide from Copper (II) nitrate. Confirm that an acid base reaction occurred stoichiometrically identify the limiting the reactant and the excess reactant.
Which of the following are ways that catalysts can speed up reactions rates? You must check all answers that apply. A) Speedup the reaction without changing k. B) Decrease the energy of activation. C) Change the path of the reaction.
what is the atomic radius of carbon. calculate length, continuous chain of 18 carbon atom
For which of the following species is resonance an important property: HONO, HONO2, N3-, NO2-, NO2
Consider preparing a buffer solution by bubbling 0.64 mols of H3N(g) into 250 mL of 1.28 M HONO2. Calculate [H3O+] and pH for this solution. Show all pertinent work including equations for any B/L A/B reactions which occurred on solution preparati..
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