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What is the ph in a solution made by mixing 60.0ml of 0.0120 Ba(OH)2 with 20.0 mL of 0.0500M acetic acid?
1. we have a solution of unknown substance dissolved in water at the temperature of 300 kelvin this solution gives
what is the molarity of a hcl solution if the reaction of 200ml of the solution with excess caco3 produces 10.5l of co2
An experiment requires 44.0 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. What volume of the liquid should he use?
a zero-order reaction has a constant rate of 2.90times10-4 mrm s. if after 65.0 seconds the concentration has dropped
Which contains the larger number of molecules, 10.0 g H2O or 10.0 g H2O2. In a blast furnace, iron (III) oxide reacts with coke (carbon) to produce molten iron and carbon monoxide
Ammonia, NH3, is industrially produced from N2 and H2 using the Haber process. How much ammonia can be produced from 28 kg of nitrogen and 2 kg of hydrogen, assuming the reaction yield is 90%?
At body temperature (98.6F = 37.0C), Kw has the value 2.4X10^14. If the pH of blood is 7.4 under these conditions, what are the concentrations of H3O+ and OH-?
Consider all the valence electron pairs of the central atom-both those that are shared in covalent bonds, called bonding pairs, and those that are unshared, called non-bonding pairs or unshared pairs.
The steam exiting the turbine is cooled by removing heat at a rate of 1.25 x 10^10 J/hr to produce a saturbated liquid at 0.5 bar. (a) Calculate the rate of steam supply needed for the turbine (kg/hr). (b) Calculate the quality of steam leaving th..
Consider the titration of 50.0 mL of 0.10 M acetic acid (Ka = 1.8 x 10-5) with 0.10 M sodium hydroxide. What is the pH when: a. No NaOH is added? b. 10.0 ml of 0.100 M NaOH is added?
Write equations for the half-reactions that occur in the electrolysis of molten potassium bromide.
Can you name me 2-3 scientific problems in chemistry and their continuous mathematical models
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