WebAnswer. IR spectrum A is propanone and spectrum B is propan-2-ol.. In IR spectrum A the presence of a strong, sharp absorption around 1710 cm-1 corresponds to the characteristic C=O, carbonyl, group in a ketone.. In spectrum B the presence of a strong, broad absorption around 3200-3500 cm-1 suggests that there is an alcohol group present, which … WebTHE ULTIMATE A-LEVEL OCR CHEMISTRY CHEATSHEET PACK. Achieve Better Grades with Less Stress. Our intelligent platform provides high quality, personalised …
Amines (6.4.1) OCR A Level Chemistry Revision Notes 2024
WebCH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l) Step 2: Combustion reactions are always exothermic (Δ H is negative) so the reactants should be drawn higher in energy than the products. Step 3: Draw the curve in the energy level diagram. Step 4: Draw arrows to show the Ea and ΔH including their values. WebHundreds of carefully selected assessment materials including exam style practical questions, multiple choice and prose response. All linked to the new specifications so you can assess and prepare your students appropriately. Interactive Exemplars - real examples of candidate responses to exam questions, highlighted and annotated to help you ... can i carry paint on a plane
A-Level OCR Chemistry Revision - Revisely
WebSince the Ag + / Ag half-cell has a more positive Eꝋ value, this is the positive pole and the H + /H 2 half-cell is the negative pole. The standard cell potential (Ecellꝋ) is Ecellꝋ = (+ 0.80) - (0.00) = + 0.80 V. The Ag + ions are more likely to get reduced than the H + ions as it has a greater Eꝋ value. WebUsing the Equation. Providing that you remember to use the correct units it is just a matter of re-arranging the equation and plugging in the numbers. a) How many moles of gas occupy 2000 cm 3 at 37 o C and 1100 Pa? 2000 cm 3 = 0.002 m 3 37 o C = 310K. n = PV. RT. n= 1100 x 0.002 = 2.2 = 0.00085. 8.314 x 310 2577.34. can i carry pepper spray in california