in grams of hydrogen gas required to form 1.00 x 103 g ammonia. Your Turn 2 • If you react 52.9 g of potassium chlorate (KClO3) with excess phosphorus‚ what mass of tetraphosphorus decoxide (P4O10) would be produced. KClO3 (s) + P4 (s) → P4O10 (s) + KCl (s) Answer: 36.8 g P4O10 Stoichiometry • In the real world‚ reactions do not always have 100% efficiency. • Often‚ use an excess of one of the reactants (usually the cheaper one). • Limiting Reactant – reactant that will be totally
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funnel‚ initial (grams) 35.2653 34.5269 34.8961 Mass of glass funnel + ppt. after drying (grams) 35.6653 34.9569 35.3111 Mass of product (grams) 0.4000 0.4300 0.4150 Moles of product corresponding to moles CaC2O4.H2O 2.74 x 10-3 2.94 x 10-3 2.84x10-3 % Ca2+ in the unknown sample 0.4384 = 0.44 0.4704 = 0.47 0.45 Calculations : moles of product = moles CaC2O4.H2O (mw = 146 g/mol) Funnel 1: Funnel 2: % Ca2+ in the unknown sample : (atomic wt. Ca = 40 g/mol) % Ca2+ (w/v)
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Unit 3 Mica Shufflebotham Introduction to Marketing Assignment 4 Cadburys Dairy Milk chocolate- Information sheet 1 Customers and consumers A person that purchases for the product or service is a customer‚ whereas the consumer is the ultimate user of the product or service. A person can be both the customer and consumer. This applies to Cadburys consumer markets‚ and the customer may not be the end user of the product. For example‚ if you buy a Cadburys dairy milk chocolate bar for
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Name Class For Edexcel GCSE Mathematics Paper 1B (Non-Calculator) Foundation Tier Time : 1 hour 45 minutes Total Marks You must have: Ruler‚ protractor‚ compasses‚ pen‚ pencil‚ eraser. Instructions and Information • • • • • • Write your name in the box at the top of the page. Answer all the questions in the spaces provided. The total mark for this paper is 100. The marks for each question are shown in brackets. Calculators must not be used. Questions labelled with
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Pacific which includes Asia‚ Australia‚ New Zealand‚ and more. 2. Approximately how many IPv4 addresses are possible? An IPv4 uses 32 bit IP address and with 32 bits the maximum number of IP addresses is approximately four billion IPv4 addresses. 3. Approximately how many IPv6 addresses are possible? An IPv6 uses 128 bit IP address and with 128 bits the maximum number of IP addresses is approximately 48 billion. 4. Why do you think the world is running out of IPv4 addresses? The central pool
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Hi Stoil‚ Thank you again‚ for your patience while we work through this issue. After looking over the information you sent in the last email; I agree this is probably more a software issue than a hardware issue. This also‚ might be an issue with FreeFlyer not having full access privileges to your computer. I presumed‚ but wanted to confirm that you are running FreeFlyer with full Read‚ Write‚ and Execute permission? If you are‚ I would like to preform one last test before considering a different
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1. I would like to start a business that advises on and creates commercials and other video based advertising for other smaller businesses. With social media and online-video sharing being as large as it ever has been‚ less people are watching TV‚ local shop’s commercials are not being seen. I want to help create commercials that will be able to rival larger companies and also advise those shops on what platforms will get them the most exposer to farther their business. 2. I believe the best path
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determine the absorbance of different concentrations of a certain solution‚ and then how to use the information gathered and Beer‟s Law to calculate the concentration of an unknown solution. Beer‟s Law relates the length which light has to travel through the solution‚ the concentration of the solution‚ and the molar absorptivity with the absorbance of that solution. Beer‟s Law states that “there is a logarithmic dependence between the transmission of light that shines through a material and the density
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Importance Of Chemistry - College Essay - Adarshjj2 Page 1 of 2 FREE ESSAYS AND RESEARCH PAPERS Search 600‚000 Essays Saved Docs Like 55k 874 692 SEARCH Join Login Writing Service Resources Help Contact Us Send Get Better Grades Today By Joining OPPapers.com and Accessing Over 600‚000 Articles and Essays! GET BETTER GRADES Home Page » Science » Chemistry Research Papers Importance Of Chemistry Importance Of Chemistry SUMMARY FOR GRADE 7 FIRST SEMESTER
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which deserve further analysis. 3. The Benford command is activated by benford formula. Users can select Analyze from the menu bar and choose Perform Benford Analysis to display the Benford dialog box. B. 1. These Characteristics are following: comprised of similar sized values for similar phenomena; without built-in
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