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A solution is prepared at 25°C that is initially 0.38M in benzoic acid HC6H5CO2, a weak acid with Ka= 6.3*10^-5, and 0.23 M in potassium benzoate (KC6H5CO2). Calculate the pH of the solution. Round your answer to 2 decimal places.
For the reaction Na2CO3(aq)+2HCl(aq)= 2NaCl(aq)+CO2(g)+H2O(l), suppose you have 100 mL of 3.80M Na2CO3. How many milliliters of 0.920 M HCl would you have to add to the sodium to consume the Na2CO3 completely
The characteristic odor of pineapple is because of ethyl butyrate a compound containing carbon, hydrogen, and oxygen. Combustion of 1.39mg of ethyl butyrate produces 1.29mg of H2O and 3.16mg of CO2. Explain what is the empirical formula of the com..
Please do not respond to this post as this is a duplicate post. The same question has been posted twice by mistake and there is no need for a response to this.
By how much is the oxidizing power of MnO4-/Mn2 couple decreased if the H concentration is deceased
A 1200 kg rocket without an internal propulsion system is launched and reaches a maximum height of 350 000 m. Determine the launch speed of the rocket.
Will a lower temperature chemical reaction be expected to give an absorbance/time plot with a slope that is more shallow or steeper that is closer to or further from the horizon than one that is at a higher temperature?
Calculate the mass of air in an air-filled tire. Part B: Calculate the mass of helium in a helium-filled tire. Part C: What is the mass difference between the two?
Treatment of D, first with aqueous acid and then with KMnO4, yields 2 carboxylic acids identified as acetic acid and pentanoic acid. (KMnO4 cleaves 1,2-diols to yield carboxylic acids.) Propose a structure for compound D. Don't worry about sterioc..
A 1000 kg automobile is pulled by a horizontal tow line with a net force of 950 N. What is the acceleration of the auto? (Neglect friction.) A constant net force of 1500 N gives a toy rocket an acceleration of 2.5 m/s2. What is the mass of the roc..
What is (Are) the principal species and their molarities in the resulting solution? What is the PH of the solution?
compatible combination was titrated with 0.1021M standardHCl. It took 20.97mL to reach the phenolphthalein end point and 42.00mL to reach the bromocresol greenend point.
What is the empirical and molecular formula of Acyclovir (MW 225).( C, 42.67%) - ( H, 4.92% )- (N, 31.10%)- (O, 21.31%)...........Weights: C=12.0; H=1.008; N=14.0; O=16.0
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