Concept explainers
(a)
Interpretation:
Molar concentration of hydronium ions in urine sample has to be given if the
Concept Introduction:
Negative logarithm of the concentration of hydronium ion is the
From the above equation, the concentration of hydronium ions can be calculated by rearranging. The sign of
(b)
Interpretation:
Molar concentration of hydronium ions in stomach fluid sample has to be given if the
Concept Introduction:
Refer part (a).
(c)
Interpretation:
Molar concentration of hydronium ions in blood has to be given if the
Concept Introduction:
Refer part (a).
(d)
Interpretation:
Molar concentration of hydronium ions in exocrine pancreatic secretions has to be given if the
Concept Introduction:
Refer part (a).
Want to see the full answer?
Check out a sample textbook solutionChapter 6 Solutions
Chemical Principles: The Quest for Insight
- One half liter (500. mL) of 2.50 M HCl is mixed with 250. mL of 3.75 M HCl. Assuming the total solution volume after mixing is 750. mL, what is the concentration of hydrochloric acid in the resulting solution? What is its pH?arrow_forwardThe carbon dioxide exhaled in the breath of astronauts is often removed from the spacecraft by reaction with lithium hydroxide 2LiOH(s)+CO2(g)Li2CO3(s)+H2O(l) Estimate the grams of lithium hydroxide required per astronaut per day. Assume that each astronaut requires 2.50 103 kcal of energy per day. Further assume that this energy can be equated to the heat of combustion of a quantity of glucose, C6H12O6, to CO2(g) and H2O(l). From the amount of glucose required to give 2.50 103 kcal of heat, calculate the amount of CO2 produced and hence the amount of LiOH required. The H for glucose(s) is 1273 kJ/mol.arrow_forwardWrite balanced net ionic equations for the following reactions in acid solution. (a) Liquid hydrazine reacts with an aqueous solution of sodium bromate. Nitrogen gas and bromide ions are formed. (b) Solid phosphorus (P4) reacts with an aqueous solution of nitrate to form nitrogen oxide gas and dihydrogen phosphate (H2PO4-) ions. (c) Aqueous solutions of potassium sulfite and potassium permanganate react. Sulfate and manganese(II) ions are formed.arrow_forward
- Follow the directions of Question 21 for the following bases: (a) toluidine, C7H9N (b) strontium hydroxide (c) indol, C8H6NH (d) aqueous ammoniaarrow_forwardThe pH reading of a glass of liquid is given. Find the hydrogen ion concentration of the liquid. (Give your answers in scientific notation, correct to one decimal place.) (a) Beer: pH = 5.3 [H+] = х 10 M (b) Water: pH = 7.2 [H*] = x 10 Marrow_forwardIn a titration of Ba(OH)2(aq) against an unknown triprotic acid, H3A(aq), 20.00 mL of 0.0900 M Ba(OH)2(aq) was required to neutralise 30.00 mL of the triprotic acid. (a) Determine the molarity of the triprotic acid. (b) If 10.00 mL of the solution of the triprotic acid contains 0.07045 g of the triprotic acid, determine the molar mass of the triprotic acid.arrow_forward
- Find the pH of a 0.155 M HClO2(aq) solutionarrow_forwardFor each of the following entities Identify it as a strong or weak base. Select the correct arrow to show the changes that occur when the bases are placed in water. Select the approximate pH for each resulting solution. LIOH(aq) is classified as a base. The reaction equation with water utilizes which of the following arrows? Choice A Choice B 7 >>7 NaCH3CO0(aq) is classified as a se. The reaction equation with water would utilize which of the following arrows? Choice A Choice B < 50% CH3CO0 (aq) + H20(1) : CH3COOH(aq) + OH (aq) The approximate pH of the solution would bearrow_forwardSodium hydrogen carbonate (NaHCO,, also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid (HCI) , which the stomach secretes to help digest food. Drinking a glass of water containing dissolved NaHCO, neutralizes excess HCl through this reaction: 圖 HCl(aq) + NaHCO3(aq) → NaCl(aq) + H,O(1) + CO,(g) The CO, gas produced is what makes you burp after drinking the solution. Suppose the fluid in the stomach of a man suffering from indigestion can be considered to be 50. mL of a 0.089 M HCI solution. What mass of NaHCO, would he need to ingest to neutralize this much HCl ? Be sure your answer has the correct number of significant digits.arrow_forward
- The following chemical reaction takes place in aqueous solution: 2 AgNO,(aq)+Na,Co;(aq) -Ag,CO,(9)-2 NaNO,(aq) Write the net ionic equation for this reaction.arrow_forwardThe following two reactions involve proton transfer. In each reaction, identify the acid and the base. Identify the conjugate base of the acid, and the conjugate acid of the base. Draw Lewis electron dot diagrams for each molecule, and describe the rear- rangement of bonding in the reaction as nonbonding electron pairs become cova- lently shared pairs and vice versa. (a) H¿O(€) + NH (aq) → H;0* (aq) + NH3(aq) (b) CH;CH;OH(aq) + NH7 (aq) → CH;CH;O¯(aq) + NH3(aq)arrow_forwardFour different solutions were prepared at the same concentration: HCl(aq), HF(aq), NaOH(aq), and NH3(aq) When the pH values were measured, the solutions showed different pH values: (1) pH = 3.1 (2) pH = 5.8 (3) pH = 8.4 (4) pH = 12.8 Match each of the solutions with the measured pH values. Explain. solution pH value HCl(aq) ? HF(aq) ? NaOH(aq) ? NH3(aq) ?arrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning