Question 33 of 50 Magnesium hydroxide (Mg(OH)2) and aluminum hydroxide (Al(OH)3) are common ingredients in antacids. When these compounds combine with stomach fluid, which contains hydrochloric acid (HCl), how would the pH of the stomach fluid change? A. Antacids contain hydroxide, which makes them acidic compounds; therefore, the pH of stomach fluid would decrease. B. Antacids contain hydrogen, which makes them basic compounds; therefore, the pH of stomach fluid would decrease. C. Antacids contain hydrogen, which makes them acidic compounds; therefore, the pH of stomach fluid would increase. D. Antacids contain hydroxide, which makes them basic compounds; therefore, the pH of stomach fluid would increase. Reset Selection Mark for Review What's This? Question 34 of 50 Consider the reaction H2SO4 + H2O → HSO4- + H3O+. What are the base and conjugate acid in this reaction? A. H2SO4 is the base and H2O is the conjugate acid. B. HSO4- is the base and H3O+ is the conjugate acid. C. H2SO4 is the base and HSO4- is the conjugate acid. D. H2O is the base and H3O+ is the conjugate acid. Reset Selection Mark for Review What's This? Question 35 of 50 Which of the following best explains the relationship between hydronium ion (H3O+) and hydrogen ion (H+)? A. Hydrogen ion is formed from the removal of hydrogen ion, H+, and hydroxide ion, OH-, from a hydronium ion, so a hydrogen ion is what remains after an acid-base reaction has occurred. B. Hydrogen ion and hydronium ion combine to form H4O2+, a highly reactive compound that causes oxidative stress. C. Hydronium ion is formed from the addition of a hydrogen ion to water, so hydronium ion is the same thing as a hydrogen ion in an aqueous solution. D. Hydronium ion is the final product of the reaction in which 2 molecules of water lose a hydroxide ion, OH-. ; there is a relationship between hydronium and hydroxide, but not between hydronium and hydrogen. Reset Selection Mark for Review What's This? Question 36 of 50 Which of the following compounds is the most basic? A. milk of magnesia, [H+] = 1 × 10–10 M B. human urine, [H+] = 1 × 10–6 M C. lime juice, pH = 2 D. ammonia, pH = 12 Reset Selection Mark for Review What's This? Question 37 of 50 Which of the following compounds is the most acidic? A. bleach, pH = 13 B. orange juice, pH= 3 C. black coffee, [H+] = 1 x 10-5 M D. baking soda, [H+] = 1 x 10-9 M
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
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Question 33 of 50 Magnesium hydroxide (Mg(OH)2) and aluminum hydroxide (Al(OH)3) are common ingredients in antacids. When these compounds combine with stomach fluid, which contains hydrochloric acid (HCl), how would the pH of the stomach fluid change? Antacids contain hydroxide, which makes them acidic compounds; therefore, the pH of stomach fluid would decrease. B.Antacids contain hydrogen, which makes them basic compounds; therefore, the pH of stomach fluid would decrease. C.Antacids contain hydrogen, which makes them acidic compounds; therefore, the pH of stomach fluid would increase. D.Antacids contain hydroxide, which makes them basic compounds; therefore, the pH of stomach fluid would increase. Reset SelectionMark for Review What's This? |
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Question 34 of 50 Consider the reaction H2SO4 + H2O → HSO4- + H3O+. What are the base and conjugate acid in this reaction? H2SO4 is the base and H2O is the conjugate acid. B.HSO4- is the base and H3O+ is the conjugate acid. C.H2SO4 is the base and HSO4- is the conjugate acid. D.H2O is the base and H3O+ is the conjugate acid. Reset SelectionMark for Review What's This? |
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Question 35 of 50 Which of the following best explains the relationship between hydronium ion (H3O+) and hydrogen ion (H+)? Hydrogen ion is formed from the removal of hydrogen ion, H+, and hydroxide ion, OH-, from a hydronium ion, so a hydrogen ion is what remains after an acid-base reaction has occurred. B.Hydrogen ion and hydronium ion combine to form H4O2+, a highly reactive compound that causes oxidative stress. C.Hydronium ion is formed from the addition of a hydrogen ion to water, so hydronium ion is the same thing as a hydrogen ion in an aqueous solution. D.Hydronium ion is the final product of the reaction in which 2 molecules of water lose a hydroxide ion, OH-. ; there is a relationship between hydronium and hydroxide, but not between hydronium and hydrogen. Reset Selection Question 36 of 50
Which of the following compounds is the most basic?
A. milk of magnesia, [H+] = 1 × 10–10 M
B. human urine, [H+] = 1 × 10–6 M
C. lime juice, pH = 2
D. ammonia, pH = 12
Reset Selection
Mark for Review What's This? Question 37 of 50
Which of the following compounds is the most acidic?
A. bleach, pH = 13
B. orange juice, pH= 3
C. black coffee, [H+] = 1 x 10-5 M
D. baking soda, [H+] = 1 x 10-9 M
Reset Selection
Mark for Review What's This? |
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