Now that you can predict the products of an acid - base reaction, you will be able to answer the following question.. "Why does acid rain affect lakes with granite beds more than lakes with calcium carbonate or limestone beds?" Acid rain contains sulfuric acid (H2SO4), to answer the above question you need to predict the chemical reactions that occur, and the products of those reactions in each case. 1. Determine if the chemicals involved are acids, bases, or essentially neutral. 2. Write the chemical equation for the reaction between acid rain and granite (SiO2). 3. Write the chemical equation for the reaction between acid rain and calcium carbonate/limestone (CACO3) 4. Using the information from the chemical reactions you wrote, describe why lakes with granite beds are more susceptible to acid rain than lakes with limestone beds.
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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Acid rain affects lakes with granite beds more than lakes with calcium carbonate or limestone beds. Because acid rain contains sulfuric acid (H2SO4). when it comes in contact with the lakes containing calcium carbonate or limestone beds, in actual case, the sulfuric acid (H2SO4) reacts with the calcium carbonate or limestone beds to form gypsum (CaSO4).
H2SO4 + CaCO3 = CaSO4 + H2CO3
H2CO3 = H2O + CO2
Limestone or calcium carbonate (CaCO3) is a water-insoluble substance while gypsum (CaSO4) is a water-soluble substance. Thus lakes with limestone when coming in contact with acid rain form gypsum which eventually flakes off or is dissolved by water, thereby the lake being affected less effectively by acid rain.
On the other hand, lakes with granite (SiO2) are more susceptible to acid rain because in actual case the granite or SiO2 does not react with any acid or base, thereby acid rain (contains H2SO4) does not react with granite in lakes, therefore, the lakes with granite beds are more polluted.
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