Write the CAPITAL LETTER of the best answer on the space provided. For numbers 1 to 3, determine if the given condition is (A) acidic, (B) basic, (C) neutral. or (D) cannot be determined. 1. pH = pOH 2. [H] 3. pOH = 4.0 %3D = 1.28 x 106

Write the CAPITAL LETTER of the best answer on the space provided. For numbers 1 to 3, determine if the given condition is (A) acidic, (B) basic, (C) neutral. or (D) cannot be determined. 1. pH = pOH 2. [H] 3. pOH = 4.0 %3D = 1.28 x 106

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter18: Representative Metals, Metalloids, And Nonmetals

Section: Chapter Questions

Problem 110E: Physiological saline concentration—that is, the sodium chloride concentration in our bodies—is...

See similar textbooks

Similar questions

Physiological saline concentration—that is, the sodium chloride concentration in our bodies—is approximately 0.16 M . A saline solution fur contact lenses is prepared to match the physiological concentration. If you purchase 25 mL of contact lens saline solution, how many grams of sodium chloride have you bought?
The 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 M
Give the answers that should be filled in the blanks below: Acetic acid solution: pH = 5.80; (a) [H*] = Ammonia solution: [H] = 5.90 x 10-9 M; (c) pH = M; (b) [OH-] = ; (d) pOH = M.
Potassium hydrogen phthalate, C8H5KO4 (molar mass 204.22 g mol-1) is a widely used standard for calibrating pH meters and carbon analyzers for performing chemical analyzes. I have a Dohrmann DC-80 carbon analyzer in my lab. The user manual calls for a standard of 400 mg / L (as carbon), in an aqueous solution. What is the mass percentage of carbon in this molecule?
In chemistry, the pH scale measures the acidity of a solution. Solutions with pH less than 7 are considered acidic, while solutions with pH greater than 7 are considered alkaline. A pH of 7 is considered neutral. The formula of pH is pH = -logx, where x represents the concentration of hydrogen ions in mol/L. Below is a diagram that conveys the pH of a few common foods and chemicals: ACIDIC NEUTRAL BASIC OR ALKALINE 1 2 3 4. 6 7 9 10 11 12 13 14 Battery Acid Stomach Acid - 1.0 Lime Juice - 1.8-2.0 Vinegar- 2.0-3.4 Lemon Juice – 2.2-2.4 Coca-Cola - 2.5 Cider – 2.9-3.3 Strawberries - 3.0-3.5 Yeasts - 3.0-3.5 Jams/Jellies - 3.1-3.5 Apples- 3.3-4.0 Honey - 3.9 Tomatoes – 4.2-4.1 Sugar – 5.0-6.0 Beef - 5.1-6.2 Pork - 5.3-6.9 Onions - 5.3-5.8 Lettuce - 5.8-6.0 Rice - 6.0-6.7 Butter - 6.1-6.4 8g Yolk - 6.4 Pure Water - 7.0 Milk – 6.3-8.5 Crackers - 7.0-8.5 Egg White - 7.0-9.0 Baking Soda - 9.0 Antacids Ammonia Calcium Hydroxide Lye Potassium Hydroxide
Scientists use the pH scale to represent the level of acidity or alkalinity of a liquid. This is based on the molar concentration of hydrogen ions, [H+]. Since the values of [H+] vary over a large range, 1 × 100 mole per liter to 1 x 10-14 mole per liter (mol/L), a logarithmic scale is used to compute pH. The formula pH = -log[H*] represents the pH of a liquid as a function of its concentration of hydrogen ions, [H+]. The pH scale ranges from 0 to 14. Pure water is taken as neutral having a pH of 7. A pH less than 7 is acidic. A pH greater than 7 is alkaline (or basic). For Exercise, use the formula for pH. Round pH values to 1 decimal place. Lemon juice Wine Ammonia Bleach 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pH 100 10-2 10-4 10-7 10-10 10-12 10-14 [H+] Water Acidic Alkaline (neutral) Bleach and milk of magnesia are both bases. Their [H+] values are 2.0 x 10-13 mol/L and 4.1 x 10-10 mol/L, respectively. a. Find the pH for bleach. b. Find the pH for milk of magnesia. c. Which substance…
Scientists use the pH scale to represent the level of acidity or alkalinity of a liquid. This is based on the molar concentration of hydrogen ions, [H+]. Since the values of [H+] vary over a large range, 1 x 100 mole per liter to 1 × 10-14 mole per liter (mol/L), a logarithmic scale is used to compute pH. The formula pH = -log[H*] represents the pH of a liquid as a function of its concentration of hydrogen ions, [H+]. The pH scale ranges from 0 to 14. Pure water is taken as neutral having a pH of 7. A pH less than 7 is acidic. A pH greater than 7 is alkaline (or basic). For Exercise, use the formula for pH. Round pH values to 1 decimal place. Lemon juice Wine Ammonia Bleach 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 pH 100 10-2 10-4 10-7 10-10 10-12 10-14 [H+] Water Acidic Alkaline (neutral) Vinegar and lemon juice are both acids. Their [H+] values are 5.0 x 10-3 mol/L and 1 x 10-2 mol/L, respectively. a. Find the pH for vinegar. b. Find the pH for lemon juice. c. Which substance is more…
5) Scientists use the pH scale to represent the level of acidity or alkalinity of a liquid. This is based on the molar concentration of hydronium ions, [H+]. Since the valu es of [H+] vary over a large range, 1 × 100 mole per liter to 1 x 10-14 mole per liter (mol/L), a logarith mic scale is used to compute the pH. The formula pH = -log[H+] represents the pH of a liquid as a function of its concentration of hydronium ions, [ H+]. The pH scale ranges from 0 to 14. Pure water is taken as neutral having a pH of 7. A pH less than 7 is acidic. A pH greater than 7 is alkaline (or basic). Two acids have [H+] valu es of 3.2 x 10-3 mol/L and 2.4 x 10-6 mol/L respectively. Find the pH for each acid. Which substance is more acidic? Round pH values to 1 decimal place.
In chemistry, the pH of a solution is a measure of the acidity or alkalinity of a solution. Water has a pH of 7 and, in general, acids have a pH less than 7 and alkaline solutions have a pH greater than 7. Find the pHpH of a solution with a hydronium ion concentration of 7.7 x 10-5 moles/liter. Round your answer to two decimal places, if necessary.
In chemistry, the pH of a solution is a measure of the acidity or alkalinity of a solution. Water has a pH of 7 and, in general, acids have a pH less than 7 and alkaline solutions have a pH greater than 7. Find the pH of a solution with a hydronium ion concentration of 7.4 x 10-³ moles/liter. Round your answer to two decimal places, if necessary.
6. (i) Define pH in words. The strong acid HCl has a pH value of 1, use the following equation for a strong acid: aq HC1 aq à pH = -logo [H*] 10 Ht pH = aq + Cl and convert the following expression to deduce the hydrogen ion concentration: aq (ii) Use the above expression to deduce the pH of HCl (aq) given the concentration of the acid to be 4.5 mol/dm³
Will 260 milligrams of calcium carbonate raise the pH of 75.0 milliliters of stomach fluid from a low pH of 1.0 into the normal pH range of 1.5-3.5? The first step of this problem is to convert 260.0mg of calcium carbonate to grams of calcium carbonate. Submit a reply that that tells how you decide approach the problem and shows the work that results in an answer. Use correct units and significant figures. In addition, reply to another student's a