Buttercup acid is an organic compound that is a liquid at room temperature and is neutralized by strong bases: C4H8O2(aq) + OH-(aq) ----> C4H7O2-(aq) + H2O(I). Compute the volume of a 0.150 M aqueous solution of NaOH that would be necessary to neutralize 0.215 g of butyric acid.

4. How many mL of 0.100 M NaOH (aq) would be needed to completely neutralize 50.0 mL of 0.300 M HCI (aq)?

1. (EtO)₂C=O, NaOEt 2. HCI

I'm confused on how to do number 4 a and b

Be sure to answer all parts. Hydrofluoric acid, HF, has a K₂ of 6.8 × 104. What are [H3O+], [F], and [OH] in 0.680 M HF? [H3O+] = || M a [F] = M [OH-] = × 10 M (Enter your answer in scientific notation.)

An aqueous solution at 25 °C has a OH concentration of 1.2 × 10 M x10 × 8 3 M. Calculate the H3O+ concentration. Be sure your answer has 2 significant digits.

a Calculate the molar concentration of H3O+ in a solution that contains 4.1x10-12 M OH². (Enter your answer to two significant figures.) [H3O+] = M b Calculate the molar concentration of H3O+ in a solution that contains 7.5x10-6 M OH". (Enter your answer to two significant figures.) [H3O+] = M

How many mL of 0.116 M Ba(OH)2 are required to completely neutralize 150.0 mL of 0.280 M HNO3?

E' E a. a. C6H5NH2 (aq) + H₂O (l) C6H5NH3* (aq) + OH- (aq) When you measure the concentrations of the ionized substances you find them to be: [C6H5NH₂] = 0.234 mol/L [C6H5NH3*] = 2.8 x 10-5 mol/L [OH-]= 2.8 x 10¹5 mol/L If the Kb is 4.27 x 10-10, is the reaction at equilibrium? If not, which direction does it need to move (right or left) to reach equilibrium? Explain. At equilibrium the concentrations of the ionized substances are: [C6H5NH₂] = 0.0537 mol/L [C6H5NH3*] = 4.79 x 10¹ mol/L [OH-]= 4.79 x 10-6 mol/L If this reaction is taking place in a 2.0L container, and 1.5 moles of phenylamine were added to the reaction, what will the new concentrations of the three ionic species be when equilibrium is re-established? CoHsNHz(aq) + H₂O (l) 2. Determine the K₂ for the above solutior 3. Determine the pH for the above solution 누 C6H5NH3+ (aq) + OH- (aq)

12