During the conducted experiment‚ a maximum of 5 trials were conducted due to limitations of resources to test the effect of a range of temperature correlating to the volume of Pink Lady’s red apple juice to indicate enzymatic performance of pectinase to ensure reliability and allow scope for statistical evaluation. The trend is similar to the curve as seen in Figure 2 and it can be concluded that the trend is confirmed by the data collated. However‚ 5 trials are not sufficient enough to depict the
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2. Procedure 2.1: Experimental Prep and Optimum wavelength Selection An ionic Iron solution with a known concentration of 4.047x10-3 M was obtained. A 250-mL sample of a 10-fold dilution of this ionic iron solution and 5 drops of concentrated HNO3 was made. This solution served as the source of ionic Iron for the remainder of the lab and was labeled “stock ionic Iron solution.” Next‚ a 50-mL aqueous ionic Iron and FerroZine® complex solution was prepared by adding 5.00mL stock ionic Iron‚ 3-mL of
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Compare and evaluate primary and secondary standards Why are they used in analysis? A primary standard is a highly purified compound which acts as a reference in all titrimetric volumetric analysis. A secondary standard is titrants that is standardized against a primary standard or another standard solution and are used for certain types of analysis. A primary standard is a reagent that is extremely pure‚ stable‚ it’s not a hydrate/has no water of hydration and has high molecular weight. A primary
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clamp‚ retort stand‚ 20 mL volumetric pipette‚ pipette filter‚ 250 mL conical flask PROCEDURES 1) The burette was washed with distilled water and then rinsed with about 5-10 mL of NaOH solution‚ running the second rinsing through the burette tip. The burette was clamped to the retort stand 2) The burette was filled with the base‚ made sure the tip was completely filled and contain no air bubbles. The initial burette reading was recorded 3) Using a volumetric pipette‚ 20.00 mL H2SO4
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Materials: -Sodium hydroxide‚ Phenolphthalein solution‚ KHP‚ Pipette‚ 10 ml graduated cylinder‚ large beaker‚ medium beaker‚ 25mL volumetric flask‚ Distilled water‚ stopper‚ 10mL burette‚ ring stand‚ clamp‚ analytical balance scale‚ 25mL Erlenmeyer flask‚ weighing paper. Method: A pipette was used to place 10 drops of 6N NaOH solution into a 25mL volumetric flask. The NaOH was then diluted by adding carbon dioxide-free distilled water to the 25mL mark. A 10mL burette was then put clamped
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= 68.04g * Mass of Na2CO3 = 10.6g 1. 10.6g of Na2CO3 was weighed in a dry beaker. Small amount of distilled water was added and the salt was dissolved. 2. The contents of the beaker were transferred to clean volumetric flask of 100ml. 3. Collection of washings was done 3-4 times. 4. The solution was made 100ml. Shook well to ensure the uniformity of the solution. 5. The contents were transferred to the storing bottle and it was labeled 1M Na2CO3 solution
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Objectives This experiment aims to analyse the given sample of acetaminophen‚ Sample A‚ to see if it complies with the monograph in the British Pharmacopoeia (BP) for the identification of acetaminophen‚ the limit test for p-aminophenol and the assay for acetaminophen. Procedure Identification for Acetaminophen Potassium bromide (KBr) disc technique was used to prepare the sample for the infrared absorption spectrophotometry. The agate mortar and pestle were cleaned with absolute ethanol using
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Introduction: On a daily‚ millions of food products are exchanged and bought around the globe. Every person trusts that the Nutrition and Drug Label rely the proper information so they can make healthy and wise decisions about the food entering their body. This is essential to people who suffer from diabetes or other serious health problems. For consumers with high blood pressure‚ the incorrect salt intake can be deadly. However‚ the Food and Drug Administration allows there to be a twenty percent
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H00146120 Mechanical Engineering 2nd Year Mechanical Engineering Science 6 (B58EF) Lab Report for Spark Ignition Engine Test Experiment conducted on: 02/Feb/2015 Group No: 6 Submitted to: Dr. Mehdi Nazarinia Table of contents Abstract Pg. 2 Introduction Pg. 2-3 Equipment Pg. 4-7 Procedure Pg. 8 Theory Pg. 10-12 Results Pg. 14-17 Result at speed of 2400 Rpm Result at speed of 2200 Rpm Result at speed of 2000 Rpm Result at speed
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About 10 cm3 of the coloured solution was transferred into a volumetric flask using a pipette and deionized water was added until it reached the mark. The mixture was then shaken well. Before the coloured solution was measured for its absorbance‚ deionized water was first placed in the ultraviolet-visible (UVV) spectrophotomter as to calibrate the UVV spectrophotometer to zero. Then only some of the diluted solution in the volumetric flask was transferred into a cuvette cell using a dropper and
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