Under the OHSA, upon request, your company must provide MSDS for all hazardous materials in the workplace to the following people: a) the medical officer of health b) local fire department c) Ministry of Labour d) the police
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- A series of reactions is carried out on the alloy (A) formed of two metals, as in the following scheme : Amount of ppt. (B) +H2SO4(aq) +NAOH(ag) +NaOHçaq) Decreases and a Alloy Aqueous solution Ppt. (B) white green ppt. remains What are the two metals forming alloy (A)?.. a) Copper and aluminum b) Copper and iron c) Iron and aluminum d) Iron and lead.College of Teacher Bachelor of Secondary Education *promoting pedagogical excellence elor of Sec omoting pedage RIN ht: (a) (b) Br. C. CH3 b1. HNO3, H2SO4 2. Fe, H30*r H2/Pd s / oD Br NO2 (c) KMN04 7 (d) Cl CH3CH2CH2CI AICI3 H20 7. OCH3 4. Predict the major product(s) of the following reactions: OM (a) CI (b) CH CH CH3CH2C! AICI3 CH3CH2COCI AICI3 (c) CO2H HNO3 (d) N(CH2CH3)2 H2SO4 SO, H2SO4 ASITYKeeping an updated inventory for all the hazardous chemicals stored in a laboratory/building is one of the key tasks in ensuring the safety of all workers working in a laboratory, in addition to complying to the OSHA Act 1994 of Malaysia. Suggest five (5) aspects or information related to a hazardous chemical which should be included in an inventory.
- In the following three instances, which choice is greener ineach situation? Explain. (a) Benzene as a solvent or water asa solvent. (b) The reaction temperature is 500 K or 1000 K.(c) Sodium chloride as a by-product or chloroform (CHCl3)as a by-product.A carbon steel plate is exposed to stagnant seawater containing dissolved oxygen and a corrosion rate of icorr = 6.0 x 10-5 A cm-² is measured. The molar mass of iron is M = 55.8 g mol-¹ and its density is p = 7.8 g cm-³. (a) What is the corrosion rate of the steel plate in mmpy? (b) A zinc plate is then electrically connected to the carbon steel plate and both are immersed in seawater. Which material will form the anode and which the cathode in the resulting galvanic couple? Justify your answer. (c) Write down the relevant anodic and cathodic reactions for (b). (d) Sketch the galvanic couple showing the anodic and cathodic reactions and the direction of the electron flow.) - O + 88 www-awu.aleks.com Files Lecture 16 - The Punic... Rhetorical Analysis Essa... Journal Assignment: Pre... Document3.docx ALEKS - Anniston Stovall... b Answered: One way the... O CHEMICAL REACTIONS Anniston V Solving for a reactant in solution 1/5 One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(II) carbonate, in concentrated sulfuric acid. The sulfuric acid reacts with the copper(II) carbonate to produce a blue solution of copper(II) sulfate. Scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: Fe(s) + CUSO 4(aq) Cu(s) + FeSO4(aq) Suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. He adds powdered iron to a 100. mL copper(II) sulfate sample from the plant until no more copper will precipitate. He then washes, dries, and weighs the precipitate, and finds that it has a mass of…
- Research has been conducted on molybdates as replacements for chromates in the surface treatment of various metals in order to reduce corrosion by the formation of a surface film of MoO,. The overall reaction with iron is 2Fe(s) + 3M00- (aq) + 6H*(aq) - Fe;Os(s) + 3M0O:(s) + 3H;O() Given the following AG; in calories per mole at 25°C: Fe,O; (s) =-177,100, MoO:(s) =-120,000, H:O (1) =-56,690, Mo0; (aq) =-205,420 (a) Is the above overall reaction spontaneous under standard conditions? (b) Calculate the standard electrode potential for the above overall reaction. (c) Write an expression for the electrode potential as a function of molybdate ion concentration and pH. (d) Is the overall reaction spontaneous for a molybdate ion concentration of 0.001M at pH 7.0?Outline the steps you would take to conduct a thorough risk assessment of chemical hazards in the workplace as a environmental health and safety officerui/v2/assessment-player/index.html?launchld=e7ad5aa7-60ff-4282-9742-afcf701f8dc1#/question/11 9: Homework 23 Question 12 of 12 Current Attempt inrrogress -/1 E Methyl alcohol (CH3OH) is made by the reaction of carbon monoxide and hydrogen in the presence of certain metal oxide catalysts. CO(g) + 2H2(g) –→CH3OH(1) How much alcohol can be obtained by reaction of 31.9 g of CO and 9.59 g of H2? How many grams of excess reactant remain unreacted? i oct 22
- 2) A) What mass of air is required to burn 1.0 kg of ethylene to completion. (stoichiometric) B) What mass of air is required to burn 1.0 kg of ethylene to completion with 15% excess air.(24) The gold-plating of a ceramic figurine requires a total of 2.78 g of solid gold. If the current being used is 12.7 amperes, how many minutes will it take to plate the gold figurine? You may assume that there is sufficient concentration of gold cation to complete the process. (A) 1.79 (B) 1056 (C) 5.36 VELG 14 (D) 68.1 (E) 4.57 8The coal whose composition is given in the table below is burntwith 100% excess air. Calculate (a) the theoretical oxygenrequirement per 100 kg of coal (b) the theoretical air requirementper 100 kg of coal (c) the Orsat analysis of the gases when thecoal is burnt with 100% excess air. Component Weight % C 70.32 H2 3.91 S 0.52 O2 25.25