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Problem- Consider a 1.0 L solution of 0.5 M hypochlorous acid. Solid sodium hydroxide is added to the solution until the pH = 7.00. How much NaOH was added? Assume change in volume is negligible. MMNaOH = 40.00 g/mol.
Solve the above problem in detail no word count
An electron in a hydrogen atom is excited with electrical energy to an excited state with n= 2. The atom then emits a photon. What is the value of n for the electron following the emission
Write balanced nuclear equations for (a.) the loss of an alpha particle by thorium- 230 and (b.) the fission of U- 235 to give Ba- 140, two neutrons, and another nucleus.
Calculate the osmotic pressure (in torr) of 6.00 L of an aqueous 0.896 M solution at 30.0 deg C, if the solute concerned is totally ionized into three ions (e.g., it could be Na2SO4 or MgCl2)
You have successfully purified a protein to homogeneity. From gel permeation chromatography studies, you determine that the protein has a molecular weight for 235,000 daltons.
An experiment requires 46.0 of ethylene glycol, a liquid whose density is 1.114 . Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder.
how many grams of dipotassium oxalate m.w.166.22 should be added to 27.293 ml of 0.6682 m hclo4 to provide a solution
Would applying a high pressure stabilize the CsCl form, or the NaCl form of this compound? (hint: calculate the volume per formula unit)
The endpoint in the titration is "overshot" A. is the reported molar concentration of the hydrochloric acid solution too high or too low. B. As a result of this poor titration technique, is the reported number of moles of B4O5(OH)4^2 would be too ..
liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. suppose 74 grams of octane is mixed with 148 grams of oxygen
Given the following thermochemical equation compute the heat involved in decomposing 12.5 g of water to the elements. 2H2(g) +O2(g) → 2H2O(l)ΔH°= -571.6 kJ
When a mixture of 10.0 g of C2H2 and 10.0 g of O2 is ignited, the resultant combustion reacion produces CO2 and H2O. How many grams of C2H2, O2, CO2
Nitrous oxide is a significant greenhouse gas. The global sink N2O is 12.6 T g N yr-1. The mixing ratio is 559.5 micrograms/m3 as well as the lifetime of N2O is about 128 years. Use an average surface pressure of 986 hPa to compute mass of atmosph..
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