precipitate. Hence‚ before the experiment it is possible to predict whether the reaction will include precipitate by the solubility rules. In this case the precipitate will be BaSO4. Hypothesis In this experiment the reaction equation will be: CuSO4?H2O + Ba(NO3)2 →Ba SO4+ Cu(NO3)2 In Lab#6 that we have done in Dec 15 2003; we have found out that the mole for hydrate in copper (II) sulfate is 5. Thus‚ by this experiment I will continue to use the answer that I have found in Lab#6. So by using
Premium Solubility Stoichiometry
B) gold C) hydrogen fluoride D) purified water E) all of these | 4. | When the following equation is balanced using the smallest possible integers‚ what is the number in front of the substance in bold type?Pb(NO3)2 + K2CO3 PbCO3 + KNO3 | | A) 1 B) 5 C) 4 D) 3 E) 2 | 5. | A solution has a pH of 3.28. The pOH of this solution is | | A) 10.72 B) 10.62 C) 3.28 D) 3.38 E) none of these | 6. | What is the name for HPO42-? | A) | hydrogen
Premium Atom Ammonia Oxygen
Table of Contents Laboratory Safety and Laboratory Guidelines Common and Special Laboratory Equipment Materials and Other Requirements Common Laboratory Operations and Techniques Experiment 1 …………………………………………………………………………..10 Properties of Matter Experiment 2 …………………………………………………………………………. 12 Chemical Changes Experiment 3 …………………………………………………………………………. 15 Classification of Matter Experiment 4 …………………………………………………………………………
Premium Chemistry Laboratory glassware Sodium chloride
sugar yield a yellow to orange color while higher concentrations will be red to brown. Lugol’s solution was used before and after hydrolysis to identify polysaccharides. Proteins were tested for using Biuret’s reagent‚ the alkaline chemical compound CuSO4. The action of enzymes on specific molecules was also determined‚ using the enzyme invertase followed by another test with Benedict’s reagent. Materials/ Methods Please see pages 47-52 in the Bio lab manual. Results: In part 1 of this lab
Premium Carbohydrate Glucose Enzyme
CATHODIC PROTECTION P E FRANCIS CONTENTS 1 2 3 INTRODUCTION............................................................................................................2 PRINCIPLES OF CATHODIC PROTECTION..........................................................3 METHODS OF APPLYING CATHODIC PROTECTION........................................5 3.1 3.2 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 IMPRESSED CURRENT..........................................................................................5 SACRIFICIAL
Premium Anode Electrochemistry Zinc
General College Chemistry LabPaq / Published by: Hands-On Labs‚ Inc. sales@HOLscience.com / www.HOLscience.com / Toll Free 866.206.0773 A Laboratory Manual of Small-Scale Experiments for the Independent Study of General College Chemistry 50-0123-CK-02 LabPaq® is a registered trademark of Hands-On Labs‚ Inc. (HOL). The LabPaq referenced in this manual is produced by Hands-On Labs‚ Inc. which holds and reserves all copyrights on the intellectual properties associated with the LabPaq’s
Premium Chemistry Experiment Units of measurement
Part I Multiple choice or short answer questions 1) (2 points) Identify a solid a. Definite volume and no definite shape b. no definite volume and no definite shape c. definite volume and definite shape 2) (2 points) A substance composed of two or more elements in a fixed‚ definite proportion is a. A solution. b. A heterogeneous mixture. c. An alloy. d. A homogeneous mixture. e. A compound. 3) (2 points) Read the water
Premium Atom Neutron Molecule
JEE(ADVANCED) – 2014 PAPER-1 Code-1 Questions with Answers PART – 1 PHYSICS SECTION – 1 (One or More Than One Options Correct Type) This section contains 10 multiple choice type questions. Each question has four choices (A)‚ (B)‚ (C) and (D) out of which ONE or MORE THAN ONE are correct. At time ?? = 0‚ terminal A in the circuit shown in the figure is connected to B by a keyand an (????)‚ with ??0 = 1Aand ω = 500 rad s-1 starts flowing in it with alternating current ??(??) = ??0 cos 1. the
Premium Density Mole Ideal gas law
Expt. 7. Sexual Plant Reproduction: Testing conditions required for pollen germination and tube growth ____________________________________________________________________________ File: pollen Modified from E. Moctezuma & others for BSCI 442 (Sze) Objectives: Get familiar with the parts of flowers: male and female organs Observe pollen germination and tube growth in real time. Test the conditions that stimulate pollen germination and tube growth. Observe cytoplasmic streaming (due
Premium Flower Pollen Pollination
How is Vitamin C manufactured? Ascorbic Acid Also known as: l-ascorbic acid‚ vitamin C‚ ascorbate A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets‚ and necessary to maintain connective tissue and bone. Its biologically active form‚ vitamin C‚ functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant. http://pubchem.ncbi.nlm.nih.gov/summary/summary
Premium Flavor Food preservation Vitamin C