gives a yellow precipitate with Pb2+: Pb2+ (aq) + CrO42-(aq) → PbCrO4(s) (5) Yellow The other two insoluble chlorides‚ AgCl and Hg2Cl2‚ can be separated by adding aqueous ammonia. Silver chloride dissolves‚ forming the complex ion Ag (NH3)2+: AgCl(s) + 2 NH3 (aq) → Ag (NH3)2+(aq) + Cl-(aq) (6) Ammonia also reacts with Hg2Cl2 via a rather unusual oxidation-reduction reaction. The products include finely divided metallic mercury‚ which is black‚ and a compound of formula HgNH2Cl‚
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INTRODUCTION A seed is a fertilized ovule that contains an embryo and transforms it into a new plant through the process of germination. Seeds remain inactive until conditions are right for germination. All seeds need water‚ oxygen‚ and proper temperature in order to germinate. However‚ some seeds require full light or darkness to germinate. According to Holm (1996) seeds have chemical inhibitors that prevent germination. A seed will not grow unless those inhibitors are destroyed by things like
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of respondents 4. Rating Scale Likert Scale was used by the proponents of this study to determine the differences among the answer of the respondents. The researchers set a five point scale to determine the characteristics and properties of Paper Radish. The points from the respondents answer to each item over a five point scale are represented as follows: WEIGHTED MEAN SCALE VERBAL INTERPRETATION
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The Radish seeds were planted in a pot‚ which contained soil from the garden and cow manure. The Radish was placed in an area similar to the black bean plant and watered daily. According to Yates Expert (n.d.‚ para. 3) radish plants like moist soil and by watering the plant in the evening this helped stop the soil from being dried out from the summer weather. By day eight the radish plant had germinated with more than one seed breaking through the soil. However‚ regular observations showed that
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Bioassay of Radish Seeds Bioassay is a type of scientific experiment used in the development of new drugs and monitoring pollutants. It estimates the potency of a substance‚ by testing its effect on living matter. In other words‚ it determines how much of the substance is needed to poison an individual‚ without testing it on any humans or animals. From here the TC50 of the substance can be adjusted for dealing with humans and animals over plants. In this lab we attempted to find the potency of
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Abstract The purpose of this lab was to see if radiation has an effect on the cultivated radish seeds that we used. From the observed data that we collected‚ we were able to conclude that when seeds are exposed to radiation‚ it affects how they grow‚ if there is any growth at all. Introduction Radiation is an important environmental abiotic factor for plants‚ and one small section of the electromagnetic radiation spectrum‚ is called the Photosynthetically Active Radiation (PAR)‚ provides
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REPUBLIC OF THE PHILIPPINES LAGUNA STATE POLYTECHNIC UNIVERSITY SANTA CRUZ‚ MAIN CAMPUS A.Y. 2014-2015 Santol Vinegar (Sandoricum koetjape) SUBMITTED BY: Monica A. Esguerra BSIT-3A/FOODS SUBMITTED TO: PROF. NESTOR PASAHOL INSTRUCTOR Chapter 1 THE PROBLEM AND THE SETTINGS This chapter contains the Introduction‚ Background of the Study‚ the Theoretical Framework‚ Conceptual Framework‚ Statement of the Problem‚ Hypothesis‚ Significance of the Study‚ Scope and Limitation of
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Objective Determine the concentration of acetic acid of vinegar‚ in terms of (m/m). Introduction Neutralization is a reaction of an acid with a bases to produce a salt and water. For example‚ the reaction of the strong acid HCl with the strong base NaOH produces the salt sodium chloride and water HCl(aq) NaOH(aq) ( NaCl(aq) H2O(l) Since the acid‚ base‚ and salt in this reaction are all strong electrolytes‚ the net ionic equation for this reaction is H(aq) OH-(aq) ( H2O(l) This same result
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ACCEPTABILITY OF A DEVELOPED BINUKAW (Garcinia Binucao) AS BASED PRODUCT OF WINE‚ JUICE AND VINEGAR A Thesis Proposal Presented to the Faculty of Graduate Studies and Applied Research Laguna State Polytechnic University Siniloan‚ Laguna In Partial Fulfillment Of the Requirements for the Degree Master of Arts in Teaching Major in Technology and Home Economics RUBY MAGNAYE-ADUCTANTE S.Y. 2014 - 2015 Chapter I THE PROBLEMS AND ITS
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Titration Analysis of Vinegar Student: Araik Movessian Grade: 12 Course: SCH4U Teacher: Tijana Knezovic Purpose and Introduction: In this experiment the question of “what is the molar concentration of acetic acid in a sample of vinegar?” was answered via titration using a standard solution of sodium hydroxide‚ NaOH(aq). In this investigation‚ students are to act as quality control chemists. Their purpose is to test the acetic acid concentration of the vinegar to discover whether it
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