Title Laboratory Techniques and Measurements Purpose The purpose of this experiment is to determine mass‚ length‚ temperature‚ volume‚ and density of objects and liquids using common measuring devices and algebraic formulas. The metric system‚ the most common set of measurements used in science‚ which includes meters‚ liters‚ Celsius‚ and grams will be used. Procedure The following items were used within the experiment: (1) Metric ruler with centimeter (cm) and millimeter (mm)‚ (1)
Premium Orders of magnitude Water Base
Green Chris Christopher is in his last year of his degree in Agrobiology. He needs to complete a 6 months internship with the Agri-food and Veterinary Authority AVA of Singapore. He has prior experience in growing crops of tomato and achieving at least a 95% yield. In the lab‚ his supervisor Dr Ong decided to challenge him. Dr Ong said: “Hi Christopher‚ welcome to our AVA laboratory. We are pleased to have you here. We have some problems growing Rhododendron.” Christopher replied: “Thank you
Free PH Sodium hydroxide Hydrochloric acid
( 4 drops) Chemical # 2 (4 Drops) Observations Chemical Change (Y/N) A1 NaHCO3 SodiumBicarbonate HCl Hydrochloric Acid Bubbles yes A2 NaOCl Sodium-Hypochlrite Kl Potassium Iodide Observation 1: None Add 2 drops of solution Observation 2: Solution turned blue Yes A3 Kl Potassium Iodide Pb(NO3)2 Lead Nitrate Turned Yellow Yes A4 NaOH Sodium Hydroxide C20H14O4 Phenolphthalein Turned pinkish red (magenta) Yes A5 HCl Sodium Hydroxide C20 H14 O4 Phenolphthalein Turned Cloudy Yes A6 NaOH Sodium
Premium Chemistry Chemical reaction Hydrochloric acid
concentration of Sodium Hydrogen Carbonate (NaHCO3) on the rate of photosynthesis using a Cobomba plant. Hypothesis: As the concentration of NaHCO3 increases the rate of photosynthesis of the Cobomba plant should increase‚ as there is a greater presence of a carbon dioxide‚ obtained from the carbonate‚ which is a key reactant in photosynthesis. However it is also expected that the rate of photosynthesis should plateau with greater amounts of NaHCO3‚ because the Cobomba plant will not be able
Free Carbon dioxide
purpose of this report‚ the two factors being investigated are temperature and concentration. The reaction that is being investigated is the reaction between sodium bicarbonate and hydrochloric acid. The balanced chemical equation is as follows: NaHCO3 + HCl -> NaCl + CO2 + H2O Sodium bicarbonate‚ also known as baking soda‚ is used as an antacid to treat indigestion and heartburn. Hydrochloric acid is a widely utilised acid‚ used for everything from making steel for bridges‚ to aiding digestion in
Premium Chemical reaction Chemistry Reaction rate
experimentally determine the % NaHCO3 in the tablet using the information from the highest/longest distance. Calculate the error and % error of NaHCO3 in an Alka-Seltzer tablet and to determine the limiting reagent for the highest/longest distance traveled. Alka-Seltzer tablets were first obtained. Vinegar‚ a 250-mL beaker‚ and a 50-mL (or 10-mL) graduated cylinder was given from the instructor. After the experiment‚ a graph of percent by mass of the reacted NaHCO3 in a tablet versus the volume of
Free Acetic acid Sodium bicarbonate Vinegar
CHEMISTRY PRACTICALS CLASS-XII EXPERIMENT No. 1 AIM – (a) To prepare 100ml of M/20 solution of oxalic acid. (b)Using this calculate the molarity and strength of the given KMnO4 solution. APPARATUS AND CHEMICALS REQUIRED- Oxalic acid‚ weighing bottle‚ weight box‚ volumetric flask‚ funnel‚ distilled water‚ chemical balance‚ beakers‚ conical flask‚ funnel‚ burette‚ pipette‚ clamp stand‚ tile‚ dilute H2SO4‚ KMnO4 solution. THEORY- (a) Oxalic
Premium Carboxylic acid Titration
SNC2D0 Exam Review BIOLOGY: Cells‚ Tissues‚ Organs and Organ Systems 1. Compare and contrast the following terms: a) Endoplasmic reticulum and golgi apparatus b) Mitochondria and nucleus c) Cell wall and cell membrane d) Cell cycle and mitosis e) Cell cycle and cancer f) Tissue and organ system g) Digestive system‚ circulatory system‚ and respiratory system h) Root system and shoot system i) Phloem and xylem vessel 2. On a separate piece of paper‚ draw a labeled diagram of an animal
Premium Total internal reflection Carbon dioxide Refraction
Introduction: Photosynthesis is the trapping of carbon dioxide and its subsequent reduction to carbohydrate‚ using hydrogen from water. Hexose sugars and starch are commonly formed so the following equation is often used: light energy 6CO2 + 6H2O C6H12O6 + 6O2 carbon dioxide water chlorophyll carbohydrate oxygen Photosynthesis consists of two stages: These are the light-dependent reactions‚ for which light energy is necessary‚ and the light independent reactions series of light-dependent reactions
Free Photosynthesis Carbon dioxide
formed from a strong acid and a strong base will not hydrolyze (react with water). When placed in water‚ these salts dissociate completely‚ and their ions remain uncombined in solution. An example of such a salt is NaCl‚ formed from a strong acid (HCl) and a strong base (NaOH). Salts formed from a strong acid and a weak base hydrolyze to form a solution that is slightly acidic. In this kind of hydrolysis‚ the water molecules actually react with the cation from the weak base. For example‚ when
Premium Acid PH Ammonia