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Carbon dioxide dissolves in water according to the equations:CO2( g) + H2O(l )<----->H2CO3(aq)H2CO3(aq) + H2O(l)<----->HCO3-(aq) + H3O+(aq)Carbon dioxide levels in the atmosphere have increased about 20% over the last century. Given that Earth’s oceans are exposed to atmospheric carbon dioxide, what effect might the increased CO2 be having on the pH of the world’s oceans? What effect might this change be having on the limestone structures (primarily CaCO3) of coral reefs and marine shells?

Identify the TRUE statement about acid rain. O Acid rain dissolves marble statues. O Acid rain contains nitric acid and sulfurous acid O Acid rain comes from hydroelectric power plants. O NO combines with oxygen and water to form nitrous acid, which is a component of acid rain. O Acid rain does not corrode steel bridges.

For each of the following pairs of substances • Classify each of the substances. • Compare their approximate pH levels. • Compare their ability to conduct electricity. • Compare their relative hydronium or hydroxide concentration. Comparison of 1.0 mol/L LIOH(aq) and 1.0 mol/L HOCI(aq) • LIOH(aq) is classified as a • HOCI(aq) is classified as a • HOCI(aq) has a + pH than LIOH(aq) has. . нос(ag) is a + electrical conductor than LIOH(aq) is. LIOH(aq) has a : [OH (aq)] than HOCI(aq) has. Comparison of 1.0 mol/L HCN(aq) and 1.0 mol/L KF(aq) • KF(aq) is classified as a • HCN(aq) is classified as a • HCN(aq) has a : pH than KF(aq) has. • HCN(aq) is a + electrical conductor than KF(ag) is. • HCN(aq) has a + [H30+(aq)] than KF(aq) has.

The pH scale was designed to make it convenient to express hydrogen ion concentrations that are small in aqueous solutions. The definiton of pH is in terms of base 10 logarithms. pH = -log[H¹] where [H] is the hydrogen ion concentration. a. If the hydrogen ion concentration in a solution is 5.98 x 10-3 mol/L, the pH is b. If the pH of a solution is 3.171, the hydrogen ion concentration is mol/L.

The pH scale was designed to make it convenient to express hydrogen ion concentrations that are small in aqueous solutions. The definiton of pH is in terms of base 10 logarithms. pH = - log [H*] where [H"] is the hydrogen ion concentration. a If the hydrogen ion concentration in a solution is 1.97 x 10 molL, the pH is b. If the pH of a solution is 3.146, the hydrogen ion concentration is mol/L.

Chapter #9, Question #5: The principal anion and cation of Lake Huron, one of the Great Lakes in North America, are, respectively, hydrogen carbonate and calcium.  The concentration of the former is approximately 1.05 mmol L-1.  Calculate the mass of solid calcium carbonate that would remain if 250 mL of Lake Huron water is evaporated to dryness.

Discuss and give a reason for the pollution problem associated with acid rain?

1. Nitrogen in an industrial wastewater is primarily in the form of ammonia (NH3) and ammonium (NH4+) ions. The acid/base equilibrium reaction for ammonia and ammonium is given as: NH4+ → H+ + NH3 Ką = 10-9.26 The total nitrogen concentration in wastewater is given as 2 x 10-3 moles/L (or 28 mg N/L), a. Calculate the concentration of ammonia (NH3) and ammonium (NH4*) ions at pH 10. NH3: moles/L NH4*: moles/L Check b. In ammonia stripping, nitrogen is removed from wastewater by volatilization of NH3. Would ammonia stripping be more effective above or below pH 9? Briefly explain your reasoning.

Formic acid, HCOOH, ionizes in water according to the following equation. The equilibrium constant is K = 1.8 × 10–4. $$HCOOH(aq)+H2​O(l)HCOO−(aq)+H3​O+(aq) Calculate the equilibrium concentration of H3O+ in a 0.985 M solution.     M

A)When working in the lab, you are measuring the pH of a system. The pH meter reads 4.34. What is the concentration of [H3O+] in solution? B)You have created a solution of NaOH by dissolving NaOH in water. You determine that the [OH-] concentration in solution is 4.37 x 10-9. What is the pOH of the solution? C)What is the pH of a solution containing an [H3O+] = 9.67 x 10-3?

Please help with question 5

Write the chemical formual of acid: Cl-(aq0+HS04-(aq)  HCI(AQ+SO42-(aq)

Consider the reaction below. Co(H,O),* (aq) + 4 Cl¯ (aq) = COC1," (aq) + 6 H,O (1I) The equilibrium constant expression (K) of the reaction does not include the concentration of H,O even though the reaction produces six moles of water. Explain.

Which of these statements correctly explains the effects of the ocean acidification on marine animal shell formation? 1. Increased levels of hydrogen ion in seawater decrease pH of seawater but have no effect on the shell formation of marine organisms. 2. Increased levels of hydrogen ions in seawater combine with carbonate ions that would have been used by marine organisms to make their shells resulting in deformed shells. 3. Increased levels of hydrogen ions in seawater combine with carbonate ions and therefore help in making stronger shells of marine organisms. 4. None of these.

If the Hydrogen ion concentration [H+] of certain slurry sample of soil with water is 3.5 x 10-6 M, what is the pH of the soil sample? Is the soil acidic, neutral or alkaline. Write your computation in the reply section. Highlight your final answer.

pH = −log[H+] where [H+] is the hydrogen ion concentration, measured in moles per liter. Solutions with a pH-value of less than 7 are acidic; solutions with a pH-value of greater than 7 are basic; solutions with a pH-value of 7 (such as pure water) are neutral. Black coffee has a pH of 5 and pure water has a pH of 7. Compare the pH of each and determine how much more acidic black coffee is than pure water.

||| O CHEMICAL REACTIONS Predicting the products of a neutralization reaction Predict the products of the reaction below. That is, complete the right-hand side of the chemical equation. Be sure your equation is balanced. HCIO3 + Ca(OH)₂ 45°F Mostly cloudy Explanation 0 Check Q Search ローロ X $ W 0/5 Ⓒ2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility Jessica plo 40 Ar ? 8: 0 8:19 PM 4/26/2023

Potassium hydroxide (KOH) is a strong base. Dissociation of potassium hydroxide follows the reaction equation given. KOH(s) --H20--> K+(aq) OH-(aq)   a) Write down the reaction equation for a neutralization reaction where potassium hydroxide (KOH) reacts with sulphuric acid (H2SO4) producing potassium sulphate (K2SO4) and water (H2O). Balance if needed! b) Calculate pH for the solution where 0,2 mol of KOH is dissolved into water so that the total volume of the solution is 0,5 L.

Phosphoric acid (H,PO4) is a polyprotic acid. Write balanced chemical equations for the sequence of reactions that phosphoric acid can undergo when it's dissolved in water.

Over the past 250 years, the average upper-ocean pH near the Pacific Northwest has decreased by about 0.1 units, from about 8.2 to 8.1. This drop in pH corresponds to an increase in acidity of about 30%. When CO2 levels in seawater rise, the availability of carbonate ion, CO32−, makes it more difficult for marine organisms to build and maintain shells and other body parts from calcium carbonate. Calculate H3O+ and OH− concentrations at pH levels of 8.2 and 8.1. Demonstrate by calculations that this decrease in pH corresponds to an increase in acidity of about 30%. Explain the relationship between the pH of seawater and the availability of carbonate ions. Does the change in pH from 8.2 to 8.1 result in an increase or decrease in the availability of carbonate ions?

A Dashboard 101 Chem101 + а ap.101edu.co Question 10 of 16 Submit Complete the balanced chemical reaction for the following weak base with a strong acid. In this case, write the resulting acid and base as its own species in the reaction. NH:(aq) + HCI(aq) - 14- O3- |2+ 3+ 14+ 1 2 3 4 7 9. 1 I5 16 (s) (g) (aq) H3O+ H2O OH- CI Reset • x H2O Delete + 10:24 PM P Type here to search 65°F Mostly sunny 10/31/2021 1L

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Negative ions, designated by the notation OH are always present in any acid or base. The concentration, OH, of these ions is related to [H*] by the equation [OH]• [H*] = 10-14 moles per liter. Find the concentrations of [OH ] and [H*] in moles per liter for the substances with the given pH value. pH = 7 The concentration of H* is moles per liter. (Type your answer using exponential notation.)

The equilibrium between carbon dioxide gas and carbonic acid is very important in biology and environmental science.                      CO2 (aq) + H2O (l) H2CO3 (aq)            What would be the equilibrium constant expression (Kc) for this reaction?

Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical equation for it. Be sure your chemical equation is balanced and has physical state symbols. chemical situation chemical equation reaction? A strip of solid tin metal is put into a beaker of 0.088M PdCl, solution. yes ? no A strip of solid palladium metal is put into a beaker of 0.054M SnCl, solution. yes no

Acids & Bases: Writing the Dissociation Reactions of a Polyprotic Acid Sulfurous acid (H2 SO3 ) is a polyprotic acid. Write balanced chemical equations for the sequence of reactions that sulfurous acid can undergo when it's dissolved in water. *Photo included below

Which describes a solution whose [H3O]* concentration is 3.72 x 105 M? acidic solution, pH = 4.429 O basic solution, pH= 9.571 Oacidic solution, pH = 9.571 Obasic solution, pH = 4.429 %3D