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 … WebJun 30, 2024 · Chemistry Disappearing Cross Exam Qu. Subject: Chemistry Age range: 16+ Resource type: Assessment and revision 0 reviews File previews docx, 15.64 KB A quick 2 mark and 6 mark exam question on the disappearing cross experiment. Comes with the mark Scheme Creative Commons "Sharealike"
Concentration and rates of reaction - "Disappearing …
WebThe disappearing cross experiment can be used for any reaction where a solid is produced as one of the products, as this will cause the solution to become cloudy. It does not … 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 … new construction homes murray ky
Chemistry Disappearing Cross Exam Qu. Teaching Resources
Web“Disappearing cross” experiment Aim I am investigating the effect of the concentration of Hydrochloric Acid on the speed of the reaction between Sodium Thiosulphate and Hydrochloric Acid. When these react together, … WebWhat is the method to calculate the unknown concentration? 1) Write a balanced equation for the reaction 2) Calculate the no. of moles of standard solution by rearranging the concentration formula (concentration= no. of moles/volume → … WebJan 2, 2024 · Method – Disappearing cross Measure 10cm³ of 0.1moldm⁻³ HCl (or 0.5moldm⁻³ H₂SO₄) Draw a cross on a piece of paper and place it under a conical flask Pour 10cm³ of 0.005moldm⁻³ Na₂S₂O₃ into the conical flask and record the temperature Add the HCl to the flask and record the time take for the cross to disappear then record … internet providers in sheridan wy