When you mix sodium bicarbonate and calcium chloride with bromothymol (and indicator that changes color when a chemical reaction occures) what does it create?
Thank you, the previous answers helped tremendously on my lab. I was then accepted into Harvard. Kisses from Jamaica.
To determine the product of the chemical reaction between sodium bicarbonate (NaHCO3) and calcium chloride (CaCl2) with bromothymol blue (BTB) indicator, we need to first understand the individual reactions that take place.
When sodium bicarbonate (NaHCO3) reacts with an acid, it undergoes a neutralization reaction and produces water (H2O), carbon dioxide (CO2), and a salt. In this case, the acid for the reaction is carbonic acid (H2CO3) formed by the reaction of NaHCO3 with water (H2O).
NaHCO3 + H2O → H2CO3 + NaOH
Next, when calcium chloride (CaCl2) is dissolved in water, it dissociates into calcium ions (Ca2+) and chloride ions (Cl-). Since BTB indicator is not involved in any direct reaction, we can omit it from the equation.
CaCl2 → Ca2+ + 2Cl-
To determine the final product, we need to consider both reactions. So, the chemical reaction can be represented as:
NaHCO3 + CaCl2 + H2O → H2CO3 + NaOH + Ca2+ + 2Cl-
The sodium hydroxide (NaOH) and calcium carbonate (CaCO3), both produced as products, may further react with bromothymol blue indicator in their basic form. This reaction leads to a color change of the indicator.
Overall, when the mixture of sodium bicarbonate, calcium chloride, and bromothymol blue is combined, it results in the formation of water, carbon dioxide, sodium hydroxide, calcium ions, chloride ions, and potentially a color change in the bromothymol blue indicator.