WebDisappearing Cross Experiment GCSE Science Chemistry Coursework Disappearing Cross Experiment Plan I must produce a piece of coursework investigating the rates of reaction. The rate of reaction is the rate of loss of a reactant or the rate of formation of a product during a chemical reaction. 1. Calculate 1000/time for each temperature. This value is proportional to the rate of reaction. 2. Plot a graph to show: 1. reaction … See more To investigate the effect of changing the temperature on the rate of a reaction. Sodium thiosulfate solution reacts with dilute hydrochloric acid: sodium thiosulfate + hydrochloric acid → sodium chloride + water + sulfur dioxide … See more
Core practical - observing colour changes - BBC Bitesize
WebThen we drew a cross onto a piece of paper and put an empty conical flask on top of the paper. Next, we poured the 25cm3 acid and 25cm3 thio into the conical flask and started … WebMar 6, 2024 · Disappearing Cross Subject: Chemistry Age range: 11-14 Resource type: Worksheet/Activity 2 reviews File previews Creative Commons "Sharealike" Report this resource to let us know if it violates our terms and conditions. Our customer service team will review your report and will be in touch. Last updated Not quite what you were looking for? eas citi
The Disappearing Cross - GCSE Science - Marked by Teachers.com
Webplace the conical flask on a piece of paper with a black cross drawn on it use another measuring cylinder to add 10 ml of hydrochloric acid to the flask, and immediately … WebJan 11, 2024 · A great way to learn about chemical reaction rates is to perform a classic experiment called the Disappearing 'X' Experiment. This classic experiment involves the reaction between sodium... WebWhat is the disappearing cross method? 1) 50cm3 sodium thiosulfate and 10cm3 HCl 2) black cross under conical flask 3) start timer when added 4) stop timer as soon as cross disappears - look through top of flask 5) repeat 6) repeat with change What is a … easci