Determining the Unknown Concentration of NaHCO3 (aq) Through Titration Introduction Titration is the accurate addition of a titrant- solution in a burette- into a measured volume of a sample (Kessel‚ 2003). There are many different types of titration‚ such as acid-base reaction‚ redox reactions‚ precipitation reaction and more (Dohrman). In this lab an acid base titration will be explored. In an acid-base titration‚ the concentration of an acid or base is unknown and is determined by the adding
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example by saying "Love is a roller-coaster.” A key aspect of a metaphor is use a specific transference of a word into another context. The human mind creates comparisons between different things. The best writers use metaphors. Like poetry‚ a metaphor will express a thousand different meanings all at once‚ allowing the writer to convey much more content than they could do otherwise. More than playing simple word games‚ the use of metaphors in your writing can elevate your stories to a place next to
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Identification and Recreation of Unknown White Compound #643p November 13‚ 2012 INTRODUCTION: The identity of the unknown solid white compound is determined and verified through a series of tests which uncover physical and chemical properties necessary for identification. A new sample of the same compound is then created to further prove the accuracy of the identification. The compound must be identified in order to be used. For example‚ KCl is used in medicine‚ scientific applications‚ and
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are also a good way to improve message transmission. If I ever receive an email from an unknown or suspicious source I mark it as ‘junk’. Marking the email as junk will put all future emails I receive from that sender straight into my junk mail folder. This will save time clearing out all the junk emails from my inbox. B. Explain why and how to stay safe and respect others when using email At work I use email on a daily basis‚ whether that be reading emails or sending them. Safety is one of
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beverage‚ it is also applicable for some useful purposes. In arts‚ we can use tea in papers for them to look vintage. In medicine‚ tea as a antioxidant for cleansing the body is widely known. In business‚ since tea is second to water as the most consumable type of beverage‚ tea brings money to some. In history‚
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The 13C NMR spectrum was useful to help finding the structure of the unknown. It showed six different signals in the spectrum. Signal 1 had an observed peak value of 19.242 ppm‚ and its peak calculated value was 19.1 ppm. This signal was first to most upfield and shielded in the spectrum because of the high electron density of carbon. This signal was agreed to a literature value for a CH3 group between 5-30 ppm. Signal 2 was branched to signal 1‚ and had the same value‚ but it was agreed for the
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Information Technology Policies and Procedures Acceptable Use Policy Overview This policy is intended to protect the University’s faculty‚ employees‚ Students and employees as well as the University from the consequences of illegal or damaging actions by individuals using the University Information Technology Network. The University Information Technology Network includes: Internet/Intranet/Extranetrelated systems‚ including but not limited to computer/Networking equipment‚ Software‚ Operating Systems
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Case Study Report for Unknown #49 A new school for girls was opened in a larger village in Northern Pakistan‚ and the teachers were proud to have convinced many families in the surrounding villages to allow their daughters a basic education. The school was a success‚ and the 6-10 year olds girls quickly learned how to read and write and were even instructed in the sciences. However‚ 2 weeks before summer break‚ many of the girls and the teacher developed breathing problems that included severe coughing
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Sally Jessica Smithers: The Case Of The Unknown Assassin Sally Jessica Smithers was a slender‚ beautiful‚ smart‚ and talented cop. She was investigating eleven serial killings of important men when she got a call‚ there was another murder. When she went‚ she took no time at all at the scene. As Sally left the crime scene in the park‚ with one hand in her long dark brown hair‚ she called out to a few units to make three immediate traffic stops and went to the last one to read off people’s IDs. When
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Scheme of Analysis for Lab 2 Unknown Sample Description Phase‚ color‚ odor‚ crystalline or gel-like? If crystalline‚ what is crystal shape – needle-like or powdery? Does it look like a pure substance or a mixture? How many components appear to be present? Tests on original sample Flame Test Bushy yellow‚ orange flame – Na+ is present and possibly K+ and NH4+. Pink-purple flame – K+ is present and Na+ is not. (Possibly NH4+) No color or faint trace Na+ - NH4+ is possible‚ K+ and Na+ are
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