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HA is a weak acid. Its ionization constant, Ka, is 4.0 x 10-13. Calculate the pH of an aqueous solution with an initial NaA concentration of 0.080 M.
We place 0.123 mol of a weak acid, HA, in enough water to produce 1.00 L of solution. The final pH of the solution is 1.27. Calculate the ionization contant, Ka, of HA.
We place 0.647 mol of a weak acid, HA, and 11.0 g of NaOH in enough water to produce 1.00 L of solution. The final pH of this solution is 4.56. Calculate the ionization constant, Ka, of HA.
What is the pH at the point during a titration when 34 mL of 0.200 M HCl has been added to 33 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10-5 for NH3.
Which of the following element is the most inert according to the prediction of the Lewis bonding theory?
The purpose of this assignment is to investigate a professional journal in the field of fire prevention that interests you. The objective of your critique is to find an article and compare the information in the article to what you have been learning..
If the pressure exerted by ozone, in the stratosphere is 3.0*10^-3 atm and the temperature is 253 K, how many ozone molecules are in a liter?
What are the main differences between the Friedel-Crafts alkylation and Friedel-Crafts acylations? Predict the Friedel-Crafts acylation products of the Lewis acid-catalyzed reaction of acetyl chloride
When spheres of radius r are packed in a body-centered cubic arrangement, they occupy 68.0% of the available volume. Calculate the value of a
Draw the structure of all alkenyl side products that could be formed by dehyradation of 2-methyl-2-butanol by and E1 mechanism. propose a mechanism for the formation of the alkene side products.
A 5g packet of an effervescing stomach antiacid contains 2.68 g of calcium hydroxide to neutralize stomach acid. What volume of stomach acid (containing 0.010mol/L HCl) could be neutralized
What volumes of .200 M HCOOH and 2.00 M NaOH would make 300 mL of a buffer with the pH of one made from 475 mL of .200 M benzoic acid and 25 mL of 2.00 M NaOH
Dry air is bubbled through 25 liters of water at a rate of 15 liters (STP)/min. The air leaving the liquid is saturated with water at 25 degrees Celsius and 1.5 atm. How long it will take for all of the water to vaporize.
the energy from radiation can be used to cause the rupture of chemical bonds. a minimum energy of 941 is required to
Assume the value of Delta H for this reaction is -3.8*10^2 kJ/mol The formula is 4. 2HCl (l) + Mg (s) ??? MgCl? (s) + H? (g) Assume magnesium reacts with excess HCL. Calculate the heat that would be generated for a reaction of .20 g of magnesium m..
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