Hydrochloric Acid And Marble Chips Coursework

Hydrochloric Acid And Marble Chips Coursework-59
Van Slyke Team Members: Rohan Daniel, Seth Gibson and Shannon Flood Table of Contents An experiment which involves marble chips (calcium carbonate) and hydrochloric acid will be conducted and analysed to observe the effect of concentration on reaction rate.It is hypothesised that if the molarity of hydrochloric acid (independent variable) is increased; then higher volumes of carbon dioxide (dependent variable) will be produced.This acid-base chemical reaction is given by the formula Ca CO3(s) 2HCl (aq) → Ca Cl2 (aq) CO2 (g) H2O (l).

Van Slyke Team Members: Rohan Daniel, Seth Gibson and Shannon Flood Table of Contents An experiment which involves marble chips (calcium carbonate) and hydrochloric acid will be conducted and analysed to observe the effect of concentration on reaction rate.It is hypothesised that if the molarity of hydrochloric acid (independent variable) is increased; then higher volumes of carbon dioxide (dependent variable) will be produced.This acid-base chemical reaction is given by the formula Ca CO3(s) 2HCl (aq) → Ca Cl2 (aq) CO2 (g) H2O (l).

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The dependent variable describes what will be measured or observed, the independent variable elucidates what is varied during the experiment and the controlled variable is the factor that is held constant during an experiment (Martin, 2011).

In the fundamentals of combining hydrochloric acid (HCl) and marble chips (Ca CO3), the independent variable was the concentration of hydrochloric acid; the dependent variable was the volume of carbon dioxide produced and the controlled variables included the volume of hydrochloric acid, the mass of the marble chips and the environmental conditions.

To prove this theory, this experiment was designed to demonstrate the influence of concentration over reaction rate by measuring the volume of carbon dioxide produced when five different molarities (0.5, 1.0, 1.5, 2.0 and 2.5) of hydrochloric acid measuring 30ml react with 4g of marble chips.

The reliability of the experiment was ensured by repeating the test six times with each molarity of hydrochloric acid.

The volume of carbon dioxide produced is therefore measured by determining the volume of water displaced.

Hydrochloric Acid And Marble Chips Coursework

The concentration of the hydrochloric acid was varied throughout the experiment. In this experiment, 4g of marble chips reacted with 30m L of one molarity of hydrochloric acid to prove that concentration has strong correlation with reaction rate.

The controlled variables in this experiment include the volume of hydrochloric acid, the mass of the marble chips and environmental conditions.

30m L of hydrochloric acid was measured and reacted with the marble chips.

The volume of carbon dioxide produced was measured using a measuring cylinder and a bee hive.

The acid-base reaction taking place in the conical flask produces carbon dioxide as a product which displaces the water in the measuring cylinder.

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