Concept explainers
(a)
Interpretation:
Two reasons should be listed that would causes a decline in pH levels below
Concept Introduction:
pH regulation is very important for the human body. The human body has an optimal pH range of
(b)
Interpretation:
Two reasons should be listed which causes the pH of the body to go above
Concept Introduction:
Alkalosis is the condition when the pH of the body is above the level of
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General, Organic, and Biological Chemistry - 4th edition
- The pH of saliva is normally in the range of 6.4 to 7.0. However, when a person is ill, the person's saliva becomes more acidic. (a) When Marco is sick, he tests the pH of his saliva and finds that it is 5.7. What is the hydrogen ion concentration of his saliva? (Round your answer to seven decimal places.) M(b) Will the hydrogen ion concentration in Marco's saliva increase or decrease as he gets better?arrow_forward(a) The PH of rain water collected from two cities A and B was found to be 6 and 5 respectively. Water of which city is more acidic? Find out the ratio of hydrogen ion concentration in the two samples of rain water?arrow_forward(A) Consider a solution of 1.34×10-3 M hydrochloric acid. What would be the hydrogen ion concentration of this solution? And the pH?arrow_forward
- (a) Hydrogen peroxide, H2O2, is a Brønsted Lowry acid. It is used as an antiseptic and bleaching agent. Write the formula for the conjugate base of hydrogen peroxide. (b) Hydrazine, N2H4, is a Brønsted-Lowry base used as a rocket fuel. Write the formula for the conjugate acid of hydrazine. (c) Phenol, HOC6H5, is a Brønsted-Lowry acid used to make plastics, nylon, and slimicides. Write the formula for its conjugate base. (d) Aniline, C6H5NH2, is a Brønsted-Lowry base used to make polyurethane. Write the formula for its conjugate acid.arrow_forwardI need the answer as soon as possiblearrow_forwardCalculate the [H+] for: (a) black coffee with a pH of 4.88 (Enter your answer as follows: 1.0E-2 for 0.010) (b) black tea with a pH of 6.24 (Enter your answer as follows: 1.0E-2 for 0.010) (c) green tea with a pH of 7.77 (Enter your answer as follows: 1.0E-2 for 0.010) (d) laundry detergent with a pH of 9.66 (Enter your answer as follows: 1.0E-2 for 0.010)arrow_forward
- In the year 1980, countries near the United States experienced an increase in acid precipi- tation. During this same year, the United States had an increase in the burning of fossil fu- els to power homes and vehicles. Which statement best describes how these two occurrences are related? The United States' emissions of sulfur dioxide and nitrogen dioxide increased as a result of a decrease in the burning of fossil fuels to power homes and vehicles, and wind pat- terns caused these emissions to travel, leading to the formation of acid precipitation in other areas. The United States' emissions of sulfur dioxide and nitrogen dioxide increased as a result of an increase in the burning of fossil fuels to power homes and vehicles, and wind pat- terns caused these emissions to travel, leading to the formation of acid precipitation in other areas. The United States' emissions of sulfur dioxide and nitrogen dioxide decreased as a re- sult of an increase in the burning of fossil fuels to power…arrow_forwardProvide a brief definition of pHarrow_forwardSodium hypochlorite solution is also known as bleach. It contains the hypochlorite ion ClO-. (a) Write an equation for the reaction between hypochlorite ion and ammonium ion. Label the acids and bases in the forward and reverse reactions. Identify the two conjugate acid-base pairs. (b) This equilibrium favors the reactants. Which of the acids is stronger and donates protons more readily?arrow_forward
- The concentration of H1 in your blood is 0.035 mM. (a) What is the pH of blood? (b) Find the concentration of OH2 in blood.arrow_forwardThe pH scale for acidity is defined by pH – log10 H*| where |H*| is the concentration of hydrogen ions measured in moles per liter (M). (A) The pH of Drano is 13.3. Calculate the concentration of hydrogen ions in moles per liter (M). [H*] = M (B) The pH of rain water is 5.5. Calculate the concentration of hydrogen ions in moles per liter (M). [H*] = Marrow_forwardThe pH scale for acidity is defined by pH log10 H* where H is the concentration of hydrogen ions measured in moles per liter (M). (A) The pH of egg whites is 8.3. Calculate the concentration of hydrogen ions in moles per liter (M). [H*] = M (B) The pH of lemon juice is 2.0. Calculate the concentration of hydrogen ions in moles per liter (M). [H+] = Marrow_forward
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