CHEM 110 Study Guide - Final Guide: Nan, Litre, Conjugate Acid

158 views7 pages

apricotalpaca727

30 Jun 2020

School

Northeastern Illinois University

Department

Chemistry

Course

CHEM 110

Professor

For unlimited access to Study Guides, a Grade+ subscription is required.

Document Summary

1970 (a) what is the ph of a 2. 0 molar solution of acetic acid. Ka acetic acid = 1. 8x10-5 (b) a buffer solution is prepared by adding 0. 10 liter of 2. 0 molar acetic acid solution to 0. 1 liter of a 1. 0 molar sodium hydroxide solution. Compute the hydrogen ion concentration of the buffer solution. (c) suppose that 0. 10 liter of 0. 50 molar hydrochloric acid is added to 0. 040 liter of the buffer prepared in (b). Compute the hydro- gen ion concentration of the resulting solution. A sample of 40. 0 milliliters of a 0. 100 molar hc2h3o2 solution is titrated with a 0. 150 molar naoh solution. 1. 8x10-5 (a) what volume of naoh is used in the titration in order to reach the equivalence point? (b) what is the molar concentration of c2h3o2. A solution is prepared from 0. 0250 mole of hcl, 0. 10 mole propionic acid, c2h5cooh, and enough water to make 0. 365 liter of solu- tion.

Related Questions

What is the pH of a 0.5-molar solution of acetic acid? (KaHC2H3O2 = 1.8 x 10-5)

(A) A buffer solution is prepared by adding 0.10 liter of0.5-molar HC2H3O2 solution to 0.10 liter of 1.0-molar sodiumhydroxide solution. Compute the hydrogen ion concentration of thebuffer solution.

(B) Suppose that 0.010 liter of 0.50-molar hydrochloric acid isadded to 0.040 liter of the buffer prepared in (A) Compute thehydrogen ion concentration of the resulting solution.

blushweasel6

QUESTION 1

Equal molar amounts of nitric acid (a strong acid) and methylamine (a weak base) are combined in an aqueous solution.

The pH of the resulting solution is:

greater than 7

close to 7

less than 7

QUESTION 2

A 1.00 L aqueous solution contains 0.10 mol acetic acid and 0.10 mol sodium acetate. The initial pH is 4.74. Calculate the pH after the addition of 0.049 mol of OH-.

QUESTION 3

Using the Henderson-Hasselbalch equation, calculate the pH of a buffer solution that contains 0.96 M NH4Cl and 0.33 M NH3.

QUESTION 4

A 10.0 mL volume of 0.49 M HNO3 is combined with a 15.0 mL volume of 0.58 M NaOH. Calculate the pH.

QUESTION 5

A diprotic acid is being titrated with a strong base. A volume of 0.0500 L of 0.0750 M diprotic acid (H2A+) is combined with 0.0150 L of 0.250 M NaOH.

Ka1 for the diprotic acid is 3.6 x 10-3.

Ka2 for the diprotic acid is 4.7 x 10-7.

Calculate the pH of the solution.

QUESTION 6

A saturated solution of Ca3(PO4)2 has a concentration of Ca2+ = 5.65 x 10-7 M and a concentration of PO43- = 9.80 x 10-8 M. Calculate Ksp for Ca3(PO4)2.

Answer in exponential notation. Examples:

Scientific Notation Exponential Notation

1.00 x 10-10 1.00e-10

5.00 x 105 5.00e5

QUESTION 7

A solution is prepared by combining 0.125 L of 0.020 M Pb(NO3)2 and 0.125 L of 0.050 M PbBr2. Does a precipitate of PbBr2 form? Ksp of PbBr2= 6.6 x 10-6

Yes, a precipitate forms.

No, a precipitate does not form.

QUESTION 8

Calculate the molar solubility of MgF2 in 0.37 M NaF at 25Â°C. Ksp = 7.4 x 10-11.

Answer in exponential format.

QUESTION 9

Determine the concentration of Ag+ in a solution prepared by adding 0.10 mol AgNO3 to 1.0 L of 3.9 M NH3.

Ag+(aq) + NH3(aq) [left right double arrow] AgNH3+(aq) K1 = 2.1 x 103

AgNH3+(aq) + NH3(aq) [left right double arrow] Ag(NH3)2+(aq) K2 = 8.1 x 103

Ag+(aq) + 2 NH3(aq) [left right double arrow] Ag(NH3)2+(aq) Kf = 1.7 x 107

QUESTION 10

Determine the molar solubility of MgCO3 at 25Â°C in pure water.

Ksp = 6.8 x 10-6

CHEM 110 Study Guide - Final Guide: Nan, Litre, Conjugate Acid

Document Summary

Get access

Related textbook solutions

Chemistry: Structure and Properties

Basic Chemistry

Principles of Chemistry Molecular Approach

Chemistry: Structure and Properties

Principles of Chemistry Molecular Approach

Chemistry: A Molecular Approach

Chemistry: A Molecular Approach

Principles of Chemistry: A Molecular Approach

Chemistry: The Central Science

Related Documents

CHEM 110 Study Guide - Final Guide: Buffer Solution, Conjugate Acid, Titration Curve

CHEM 210 Midterm: Minn State Moorhead CHEM 210 Test3-210-PracticeV3-Answers

CHEM 210 Midterm: Minn State Moorhead CHEM 210 Test3-210-PracticeV2-Answers

Related Questions