Copper sulphate solution

Research Questions Question 1: (1 mark) Identify three reasons why living things need food. (1 mark) Living things need food to grow and stay healthy To make energy and function properly To help fight illnesses and diseases Question 2: (7 marks) Name the five main nutrients in food. (2 marks) Carbohydrates Fats Vitamins Minerals Water b. Complete the table below to identify the need for each nutrient. (5 marks) Nutrient What it does in the body Carbohydrates Provide people with energy

can create them with the help of some basic tools. The colours you create are made exactly the same way as inside fireworks! You’ll need: • A fire-safe surface • Paper fuse – make it by soaking a coffee filter in a concentrated potassium nitrate solution and let it dry before use. • 7

number of proline residues that made the yellow product also the result of biuret is positive, give brown product from the reaction between ninhydrin and NH-group.For biuret test,alaline copper sulphate reacts with compound two or more peptide bond will give a pink or violet product as the

hydrogen peroxide will be broken down by catalase into hydrogen and oxygen, where a higher concentration of inhibitor will yield less oxygen, resultant of a lower rate of reaction. Crushed potato samples of equal weight were placed in hydrogen peroxide solutions of various temperatures. The results showed that less gas was produced as the concentration of the inhibitor rose. This Is because more enzymes were inhibited, and so less active sites were available for reaction. Reasearch and rationale Hypothesis:

The ”H” with this Unknown “Organic chemistry just now is enough to drive one mad. It gives me the impression of a primeval forest full of the most remarkable things, a monstrous and boundless thicket with no way to escape, and into which one may dread to enter,” said Baron Jons Jakob Berzelius. In this experiment we are testing for biomolecules such as protein, starch, lipids and sugar. The reagents being evaluated in this lab are Benedict, Iodine, Sudan, and Biuret. The conclusions are based on

Experiment ENTHALPY AND ENTROPY OF ZINC WITH COPPER SULFATE The CCLI Initiative Computers in Chemistry Laboratory Instruction LEARNING OBJECTIVES The learning objectives of this experiment are to. . . ! ! determine changes in enthalpy and entropy of the reaction of zinc with copper sulfate using two methods: electrochemistry and calorimetry. compare the enthalpy values obtained by the two methods. BACKGROUND Thermodynamics is concerned with energy changes that occur in chemical and physical process

oxidant and reductant of Copper and Zinc metals in there Copper-Zinc Voltaic

presence of peptide bonds in blood serum12. The active ingredients in the reagent are sodium hydroxide, potassium sodium tartrate and copper sulphate pentahydrate13. The development of a violet colour after incubation at room temperature is indicative of the presence of proteins and peptides in the blood serum12. A coloured coordination complex forms when the copper ions (Cu2+) binds to the deprotonated nitrogen atoms that form the peptide bonds of the amino acids12. Reactions can also occur between

In 1859, the first rechargeable battery was invented. Batteries that followed the Voltaic Pile included the Daniell Cell, a rechargeable battery made with nickel and cadmium electrodes in a potassium hydroxide solution. This was the first battery to use alkaline electrolyte. These batteries were much better, but were very expensive. Zinc-carbon batteries continued to be popular batteries, but they had a low battery life. In 1955 Leis Urry was asked to find

2016 Testing for Peptide Bonds in Solutions & Water using Biuret Reagent Abstract This experiment was performed to test an albumin solution, gelatin solution, glucose solution, water and an unknown solution for the presence of peptide bonds resulting in proteins through the use of biuret solution. 5mL of each solution was distributed individually to an assigned test tube to which the biuret solution was added. Ultimately the albumin and gelatin solution were found to contain proteins due