If equal volumes of 2.0 molar hydrochloric acid and a 10% by mass per volume solution...
20) Equal volumes of 0.2 M acetic acid, CH3COOH (K4 = 1.8 x 10 ) and 0.2 M aniline, C6H5NH2 (K) = 3.8 x 10") are mixed at 25°C. a. Which aqueous compound will have the highest concentration when equilibrium is established in the final solution? Justify your answer. b. Is the final solution acidic or basic? Justify your answer.
D Question 6 1 pts When equal volumes of the solutions are combined, which of the following produces a solution with the largest buffer capacity? 10 M HNO3 and 1.0 M NaOH O 1.0 M NaF and 1.0 M NaOH O 1.0MHF and 1.0 M NaOH O2.0 M HNO3 and 2.0 M LINO3 O 1.0M HF and 1.0 M LIF 1 pts Question 7 Equal volumes of 0.50 MHBr and 0.50 M NH3 are mixed together. The resunting solution can...
how
to find volume of NaOH, molar concentration of NaOH, and molar
concentration of acid soultion?
(14pts) Part A. Standardization of a Sodium Hydroxide Solution Table view Table 4. Calculations for standardization of sodium hyroxide List view Trial 1 Trial 2 Trial 3 [1] Tared mass of KHCH04 (9) 0.333 0.320 0.383 [2] Burette reading of NaOH, initial (mL) (3) Burette reading of NaOH, final (mL) 3.79 4.97 3.58 19.17 20.04 21.97 [4] Volume of NaOH, dispensed (mL) 15.38 15.07...
molarity of acid: 0.1435M
volume:25ml
1. Use the molar mass and moles of acetic acid to determine the mass of the acetic acid in the 25.00-ml sample. 2. Calculate the mass/volume percentage (m/v %) by dividing the mass of acetic acid in grams by the volume of the vinegar sample in mL and multiplying by 100. 3. For the reaction of sodium hydroxide solution with a solution of hydrochloric acid: a. Write a balanced molecular equation for the reaction, including...
50. ml of a 1.0 M solution of hydrochloric acid, HCl, is titrated with a 1.0 M solution of sodium hydroxide. What is the pH after 51 mL of NaOH has been added? Assume that the volumes are additive.
Zorcaine, C13H24N,SCI, is the salt of the base articaine and hydrochloric acid. The ionization constant for articaine is 6.4 x 10-7. (a) Is a solution of zorcaine acidic or basic? acidic O basic (b) What are the [H20+], [OH-] (in M), and pH of a 2.0% solution by mass of zorcaine, assuming that the density of the solution is 1.0 g/mL. (Assume Kw = 1.01 10-14.) [H30+1 4.9) х м [OH^] 49 M 4.0 pH
A solution of hydrochloric acid in an erlenmeyer flask contains 0.297 moles HCI. If the volume is equal to 25.00 ml, what is the molar concentration of the solution? Answer to 3 sig figs. Do not include unit, M.
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Part B: Determination of acid ionization constant (K.) and molar mass of an u Concentration of NaOH (mol/L) from bottle: 0.1053 Mass concentration of unknown acid (g/L) from bottle: 3.120 pH of unknown acid solution: 228 from pH meter. 1) Titration of unknown acid using indicator only Trial 2 Trial 1 1.593 30.851 090909 ml Mass of empty beaker Mass of beaker + unknown acid solution Mass of unknown acid solution Volume of unknown acid solution Initial volume of...
Reaction 1: Sodium hydroxide + Hydrochloric acid Volume (mL) of 2.0 M HCl(aq) used 25.2 Initial temperature (°C) of the 2.0 M HCl(aq) 21.63 Volume (mL) of 2.0 M NaOH(aq) used 24.8 Maximum temperature (°C) of the 2.0 M NaOH(aq) 21.96 NaOH and HCl final temperature: 35.14 degrees C Determine the Energy (J) absorbed (+) or released (-) by the solution (qsoln). Determine the Energy (J) absorbed (+) or released (-) by the calorimeter (qcal). Determine the Energy (J) absorbed...
Use the data below to calculate the molar mass of an unknown monoprotic acid and submit a formal lab report via the assignment tab. A. Standardization Of NaOH Solution Please show all calculations: Trial 1 0.3555 g Trial 2 0.3545 g 17.46 mL 17.20 ml Mass of KHP Moles of KHP Volume of NaOH added Moles of NaOH Molarity of NaOH Average Molarity of NaOH % Difference between two readings