experiment‚ we were trying to see whether copper‚ after a chain of chemical reactions‚ will revert back to its elemental form. Procedure: First‚ I added nitric acid with copper in a beaker‚ which turned into a copper nitrate‚ a blue-green solution. Afterwards‚ I added sodium hydroxide‚ and my solution colored to a dark blue solution called copper hydroxide. I heated the solution to evaporate the water and I got a brownish-blackish solid called copper oxide. Once the solid appeared‚ I poured
Premium Chemistry Sulfuric acid Copper
Chemistry of Fireworks By Anuradha Sahu Everyone enjoys the amazing firework shows on the Fourth of July with the beautiful vibrant colors and sparks every year. Fireworks have been part of this world for a very long time. They have been used for enjoyment and for signalling purposes. Every culture has their own significance and use of fireworks. But all fireworks have something in common; the chemistry that makes them work. No matter where you find them‚ they are made up of the same compounds
Premium Rocket Oxygen Fireworks
spectrophotometric analysis of copper sulphate Introduction: In the modern usage. The term spectroscopy includes a large group of techniques which differ widely in their mode of application and information they reveal. As a useful working definition‚ spectroscopy is a study of interaction of electromagnetic radiation with matter in the experiment it means it’s the usage of ultra-light to measure the absorbance of the copper sulpate. The regions of the electromagnetic spectrum immediately adjacent
Premium Electromagnetic radiation Spectroscopy Electromagnetic spectrum
cold water | 49.9 g | Tf from graph by extrapolation | 34.90 C | ∆THW for hot water | -20.1 | ∆TCW for cold water | 11.4 | qHW for hot water | -4196.5 J | qcw for cold water | 2380.1 J | qCal for the cup | 1816.4 J | Ccup for the cup | 159.3 J | Part B Description of sample | Metal fizzed when dissolved in HCl | Volume of HCl | 100 mL | Initial Temperature | 220 C | Mass of Mg | 0.1485 g | Part B Calculations Tf from graph | 50 C | Mass of HCl | 100 g | ∆TCW for HCl
Free Enthalpy Thermodynamics
solution and do not interfere with the oxidation of ascorbic acid by iodine solution. Iodine is relatively insoluble‚ but this can be improved by complexing the iodine with iodide to form triiodide as the following formula suggests: I_(2(aq))+〖I^-〗_((aq))↔〖I^-〗_(3(aq)) This triiodide ion can be used to oxidize vitamin C to form dehydroascorbic acid. In this reaction the triiodide ion is reduced to iodide ion‚ and ascorbic acid‚ C6H8O6 is oxidized to dehydroascorbic acid‚ C6H6O6. Aim The aim of this
Premium Vitamin C Ascorbic acid Iodine
First Ionisation energy is the measure of energy needed to remove a mole of electrons from a mole of gaseous atoms to form a mole of positively charged gaseous ions‚ also known as a cation. The general trend is that as the atomic number increases between elements Lithium to Neon the level of the first ionisation energy increases‚ as there is a stronger nuclear attraction. [Braid‚ K. et al. (2015)]. The stronger nuclear attraction along the period is caused by the number of protons increasing. When
Premium Chemical reaction Chemistry Reaction rate
evidence of any qualifications stated. Schools/College/UniversityQualification and grade achievedOr date expected to complete FORMTEXT newham college of further education FORMTEXT ESOL credit pass FORMTEXT 1997 to 1998 FORMTEXT university of kerala s. India FORMTEXT BA-degree pass PRE-degree-equivalent to A-level pass FORMTEXT 1991 to 1996 FORMTEXT board of public examinations s.India FORMTEXT SSLC- equivalent to GCSE pass FORMTEXT 1986 to 1991 SECTION 5 - Supporting Statement This is the most
Premium Recruitment Application for employment Disability Discrimination Act 1995
Ammonium Nitrate: Q = (100) (4.184) (7) = 2928.8 ii) NH4NO3: (14.0067) + 4(1.00794) + (14.0067) + 3(15.9994) = 80.04336 g/m 10 g80.04336 g/m = 62‚00500‚271 CaCl2: (40.078) + 2(35.453) = 110.984 g/m 10 g110.984 g/m = 1‚25013‚873m iii) H2O a. NH4NO3 (aq) NH4(aq) + NO3(aq) H2O b. CaCl2(aq) Ca(aq) + Cl2(aq) Conclusion Discussion 1. Some sources of error in this lab include the following. After stirring the water there were
Premium
CHEMISTRY IN THE KITCHEN Presented by: Jose Martin Jaca Jerizza Nina Vidal Krysha Jade Pepito Mae Karen Apas Jose Romano Jr. Feb Daphne Kay Ornopia Ma. Trisha Tiffany Uy Chemistry in the Kitchen 1. Growing Food 1.1 Chemicals Needed for Life 1.2 Fertilizers and their Problems 1.3 pH of Soil 1.4 Hunger Problems 2. Cooking 2.1 Physical and Chemical Change 2.2 Effects of Cooking 3. What is Cooking?: Methods of Cooking 3.1 Baking: Chocolate Chip Cookies 3.2 Frying: French Fries
Premium Food Food preservation Nutrition
Chemistry project Aim: To compare rate of fermentation of given sample of wheat flour‚ gram flour‚ rice and potatoes. Submitted By: Name: Ipshita Chatterjee Class: XII – A Roll No.: 12 Index: S.no | | Page no. | 1. | Certificate | | 2. | Acknowledgement | | 3. | Declaration | | 4. | Objective | | 5. | Introduction | | 6. | Requirements | | 7. | Procedure | | 8. | Observations | | 9. | Bibliography | | Objective: In this experiment the main objective is to
Premium Starch Ethanol Brewing