Question

n the lab activity, the reaction rate was determined by the appearance of a product. however, the reaction rate can also be determined by the disappearance of a reactant. rate

Answer 1

The rate of reaction can be determined by measuring the time dependence of a property related to reactant or product amounts. It can be measured by monitoring the appearance of a product or the disappearance of a reactant.

Step-by-step explanation:

The rate of reaction can be determined by the appearance of a product or the disappearance of a reactant. The rate of reaction is the change in the amount of a reactant or product per unit time. For example, rates of reactions that consume or produce gaseous substances can be determined by measuring changes in volume or pressure. Rates of reactions involving colored substances can be monitored via measurements of light absorption. Similarly, rates of reactions involving aqueous electrolytes can be measured via changes in a solution's conductivity.

Answer 2

The rate of a chemical reaction can be determined by monitoring the changes in the concentration of reactants or products over time.

In your lab activity, you determined the reaction rate by observing the appearance of a product. However, it's equally valid to determine the reaction rate by monitoring the disappearance of a reactant. This is based on the principle that the rate of a reaction is directly proportional to the change in concentration of reactants or products over a certain period of time.

Experimentally, you could monitor the concentration of the reactant at different time intervals and use the data to calculate the rate of the reaction. This approach is particularly useful when the product is challenging to detect or quantify, or when the reaction involves multiple steps and it is more convenient to monitor the disappearance of a reactant.

In the lab activity, the reaction rate was determined by the appearance of a product. however, the reaction rate can also be determined by the disappearance of a reactant rate. Explain