Question

Carbon dioxide dissolves in water to form a mixture which contains hydrogencarbonate ions and hydrogen ions. How would you use Universal Indicator paper to determine the pH of this solution?

a. By measuring the temperature of the solution
b. By observing the color change on the Universal Indicator paper
c. By conducting a titration
d. By analyzing the gas produced during the reaction

Answer 1

To determine the pH of a solution containing hydrogencarbonate ions and hydrogen ions, you can use Universal Indicator paper. By dipping the paper into the solution and comparing the resulting color to the standards provided, you can estimate the pH of the solution.

Step-by-step explanation:

To determine the pH of a solution containing hydrogencarbonate ions and hydrogen ions, you can use Universal Indicator paper. Universal Indicator paper contains a mixture of indicators that change color at different pH values. By dipping the paper into the solution and comparing the resulting color to the standards provided, you can estimate the pH of the solution. This method is a convenient and cost-effective way to determine pH without the need for expensive electronic pH meters.