WebFeb 12, 2024 · A very simple, but very effective, way of measuring the time taken for a small fixed amount of precipitate to form is to stand the flask on a piece of paper with a cross … Webrate = 1 ÷ (time taken for X to be obscured) Using a light sensor The amount of light passing through the reaction can be measured directly using a light sensor and a data logger. The rate can then...
Factors Affecting the Rate of a Reaction (4.1.4) AQA AS Chemistry ...
WebDisappearing Cross Investigation Aim: To see how long it takes for sodium Thiosulphate and hydrochloric acid to react at different concentrations. My Hypothesis: Using the idea of the particle theory, the more dilute a solution is, the more time it will take for the particles to react. This is due to WebPlot concentration vs. time and concentration vs. 1/time on separate graphs. Disposal Please consult your current Flinn Scientific Catalog/Reference Manual for general … good earth slimming tea cleanse
Required practical - investigate the rate of reaction by …
WebThe cross is placed under the conical flask. As the reaction takes place, the solution becomes cloudy and the cross gradually disappears. Being as I am using Hydrochloric Acid and Sodium Thiosulphate, I must ensure that I have protection from the liquids; therefore I will wear goggles. WebPlot a graph of time taken for the cross to disappear (vertical axis) against the volume of sodium thiosulphate used (horizontal axis). Check that you have sufficient results to draw … WebMethod for disappearing cross experiment Measure 50 cm3 of Sodium Thiosulfate solution in a flask Measure 5 cm3 of dilute Hydrochloric acid into a measuring cylinder Draw a cross on a piece of paper and put it underneath the flask Add the acid into the flask and immediately start the stopwatch good earth store locations