When CO 2 is bubbled into water at pH 7, the pH decreases. True or False?
When CO 2 is bubbled into water at pH 7, the pH decreases.
True or False?
Homework Answers
Carbon dioxide (CO2) gas dissolved in water can cause water to become acidic. The acidity of water increases and hence ph decreases.
TRUE
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When CO 2 is bubbled into water at pH 7, the pH decreases.
True or False?
Calculate the pH of 4.5 grams of HCl(g) bubbled into water to make 100. mL of...
Calculate the pH of 4.5 grams of HCl(g) bubbled into water to make 100. mL of solution. (Please explain it step by step!)
True or False? If a solution having a pH = 7 is diluted 10 times by...
True or False? If a solution having a pH = 7 is diluted 10 times by adding water, the new pH is 8. (correct answer: F) NH3 is a Lewis base. (correct answer: T) Al3+ is a Lewis acid. (correct answer: T) BF3 is a Lewis acid (correct answer: T) OH- is a Lewis base. (correct answer: T) BF3 is a Brönsted acid. (correct answer: F) Please provide conceptual explanations for each
12. If gas containing 10% carbon dioxide (CO2(g)) is bubbled into a water at pH 6.35,...
12. If gas containing 10% carbon dioxide (CO2(g)) is bubbled into a water at pH 6.35, what is the alkalinity of the water in units of mg/L as CaCO3 assuming all the dissolved carbon dioxide forms carbonic acid species? a) 85 mg/L as CaCO3 [correct] b) 100 mg/L as CaCO3 c) 115 mg/L as CaCO3 d) 130 mg/L as CaCO3
Which of the following is true if the pH of a solution decreases from 5 to...
Which of the following is true if the pH of a solution decreases from 5 to 2? A) [H*) increases B) [H*) decreases C) Kwincreases D) Kw decreases E) none of the above
QUESTION 13 The solubility of a gas in a liquid (water) decreases when the temperature: Increases....
QUESTION 13 The solubility of a gas in a liquid (water) decreases when the temperature: Increases. Decreases. QUESTION 14 Given the chemical equation for the auto ionization of water, select the correct product that should be in the blank space. H2O + H20 = + OH H30+ OH H20 QUESTION 15 Certain solution has a hydronium concentration of 1.0 x 10-mol/L, calculate the pH and select your answer. pH = 9 pH-8 pH - 10 QUESTION 16 Solutes that when...
Write chemical equations corresponding to these observations: a. When Cr(NO3)3 is dissolved in water, the pH decreases....
Write chemical equations corresponding to these observations: a. When Cr(NO3)3 is dissolved in water, the pH decreases. b. When the pH of a 1.0 M solution of Mg2+ is raised above 8.5, precipitation occurs. c. A precipitate of aluminum hydroxide can be redissolved with 6 M KOH. d. A precipitate of aluminum hydroxide can be redissolved with 6 M HNO3.
true or false Some compounds, when they crystallize out of water, use water to form part...
true or false Some compounds, when they crystallize out of water, use water to form part of their crystalline structure and are then call hydrates.
Considerable heat is evolved when concentrated HCl is added to water. true or false
Considerable heat is evolved when concentrated HCl is added to water. true or false
please help with both thank you When sodium acetate dissolves in water the resulting pH is...
please help with both thank
you
When sodium acetate dissolves in water the resulting pH is above 7. This is because Sodium ion reacts with water to produce hydroxide ions. O Sodium ion is the cation of a strong base and acetate is the anion of a weak acid. Acetate ion reacts with hydroxide ions to produce excess protons. none of these answers Knowing the pH of a solution will allow one to know the pOH as well. O True...
Partial 0.44/0.5pts Question 1 Is each statement true or false? 1. false All spontaneous reactions occur...
Partial 0.44/0.5pts Question 1 Is each statement true or false? 1. false All spontaneous reactions occur quickly. 2. true The reverse of a spontaneous reaction is nonspontaneous. 3. false All spontaneous processes release heat. 4. true The boiling of water at 100°C and 1 atm is spontaneous. 5. false If a process increases the freedom of motion of the particles of a system, the entropy of the system decreases. 6. false The energy of the universe is constant; the entropy...
12. If gas containing 10% carbon dioxide (CO2(g)) is bubbled into a water at pH 6.35, what is the alkalinity of the water in units of mg/L as CaCO3 assuming all the dissolved carbon dioxide forms carbonic acid species? a) 85 mg/L as CaCO3 [correct] b) 100 mg/L as CaCO3 c) 115 mg/L as CaCO3 d) 130 mg/L as CaCO3
Which of the following is true if the pH of a solution decreases from 5 to 2? A) [H*) increases B) [H*) decreases C) Kwincreases D) Kw decreases E) none of the above
QUESTION 13 The solubility of a gas in a liquid (water) decreases when the temperature: Increases. Decreases. QUESTION 14 Given the chemical equation for the auto ionization of water, select the correct product that should be in the blank space. H2O + H20 = + OH H30+ OH H20 QUESTION 15 Certain solution has a hydronium concentration of 1.0 x 10-mol/L, calculate the pH and select your answer. pH = 9 pH-8 pH - 10 QUESTION 16 Solutes that when...
please help with both thank
you
When sodium acetate dissolves in water the resulting pH is above 7. This is because Sodium ion reacts with water to produce hydroxide ions. O Sodium ion is the cation of a strong base and acetate is the anion of a weak acid. Acetate ion reacts with hydroxide ions to produce excess protons. none of these answers Knowing the pH of a solution will allow one to know the pOH as well. O True...
Partial 0.44/0.5pts Question 1 Is each statement true or false? 1. false All spontaneous reactions occur quickly. 2. true The reverse of a spontaneous reaction is nonspontaneous. 3. false All spontaneous processes release heat. 4. true The boiling of water at 100°C and 1 atm is spontaneous. 5. false If a process increases the freedom of motion of the particles of a system, the entropy of the system decreases. 6. false The energy of the universe is constant; the entropy...
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