II: Titration with a pH Meter 1. Fill the 50-milliliter buret with a 0.25 molar NaOH solution. 2. Record volume. 3. Measure out between 20 milliliters and 40 milliliters of the unknown HCl solution. This amount must be different than the amount used in part I. 4. Record volume. 5. The amount of unknown HCl is then added to the 100-milliliter Erlenmeyer flask. 6. Insert the pH meter into the Erlenmeyer flask and record the initial pH of the acid. Remember to record the pH of the solution after
Premium PH Hydrochloric acid Titration
Aim: Investigate the effect of different temperatures and chemicals including various pH levels‚ alcohol and detergent on the cell membrane structure as well as function. Hypothesis: Increasing the temperature and pH levels which the beetroot membrane cells are exposed to will increase the amount of dye that passes out of the membrane. Materials: Part A • Bunsen Burner‚ Tripod and a Wire Gauze • 250mL Beaker • A 100° thermometer • Matches • 10mL measuring cylinder • Sticky labels and a Pen
Premium Cell membrane Heat Temperature
the use of charcoal and the different strategies the researches will be using. Definition of Terms Charcoal - is a light black residue consisting of carbon. It is usually produced by slow heating of wood or other substances in the absence of oxygen. Adsorb - is the adhesion of atoms‚ ions‚ or molecules from a gas‚ liquid‚ or dissolved solid to a surface. Carbon - is a chemical element‚ all known life on Earth is made from it. It is the only element that can form long chain-shaped molecules
Premium Oxygen Internal combustion engine Atom
Native Americans have been around for about 12‚00 years. Native Americans have been protecting their land for a long time. Coal terminals‚ crude oil pipelines‚and transportation of energy are hurting the Native Americans land. One of the things that hurts the Native Americans land is mining. An example from the impacts of mining includes ‚ contamination of soil‚ groundwater and surface water. This happens by chemicals from mining processes. Mining is a big problem to the Native Americans and
Premium Petroleum Water Pollution
The Effects Different Types of Water Have on Plant Growth Abstract This experiment examines the rate of plant growth when watered with different solutions. Throughout the course of a nine week period‚ five lima bean seeds were watered with five different solutions to see which will most enhance the growth of plants. The five solutions consisted of distilled‚ filtered
Premium Water
Cobalt(II) Oxygen adduct complex Inorganic 461 lab 2-29-2012 Abstract This experiment uses Co(salen) as a model compound illustrating the uptake of oxygen in hemoglobin. SalenH2 was prepared as the intermediate‚ and reacted with hydrated cobalt to prepare Co(salen). Using Co(salen) the oxygen up-take was tested. The synthesis of SalenH2 produced 0.65 g. The percent yield of salenH2 was 116% on the filter paper and 105% after transferring salenH2 to a vial. The melting point of salenH2‚ was
Premium Hemoglobin Oxygen Iron
The Effects of HGH (Human Growth Hormone) In Enhancing Performance and Side Effects of Its Prolonged Use Human growth hormone (HGH) is produced by the pituitary gland within the body. One of its main functions is to increase growth in children and adolescents as they get older. HGH also helps regulate body composition‚ body fluids‚ muscle and bone growth‚ sugar and fat metabolism‚ and in some aspects‚ heart function. Human growth hormone can also be produced synthetically. The synthetic form of
Premium Growth hormone
and minor) of the study This study‚ therefore‚ endeavors to investigate the effects of human urine on the growth of Polyalthia longifolia also commonly known as Indian Tree. It also endeavors to inform the farmers and the people in the field of agriculture practical guidance of the other uses of human urine. Significance of the Study This investigatory project entitled “The Effects Of Human Urine On The Growth Of Indian Tree” will be conducted in order to help and inform the people especially
Premium Fertilizer Nitrogen Ammonia
Environmental Engineering Course Description: Ecological framework of sustainable development; pollution environments: water‚ air‚ and solid; waste treatment processes‚ disposal‚ and management; government legislation‚ rules and regulation related to the environment and waste management; and environmental management s...ystem. Pre requisite: General Chemistry Course outline: 1 Ecological Concepts 1.1 Introduction to Environmental Engineering 1.2 Ecology of life 1.3 Biogeochemichal
Premium Ecology Environment Environmental science
Oxygen Requirements of Bacteria BACKGROUND The GasPak system is useful for culturing anaerobic bacteria on standard microbiological media because the GasPak generates carbon dioxide and hydrogen. The hydrogen will combine with oxygen present in an anaerobic jar to produce water. This system can reproducibly attain oxygen levels in the parts per million range if used correctly. This is the best method for determining the oxygen requirements of unknown organisms. A candle jar is useful
Premium Oxygen Cellular respiration Bacteria