Acid Determination of Vitamin C Tablets and Salt Solutions Chem 1290-016 03-05-2010 ------------------------------------------------- Purpose: The purpose of this lab was to use acid-base titrations to find the mass percent of ascorbic acid in a Vitamin C tablet. A known concentration of sodium hydroxide was used and the value found was compared to the stated amount of ascorbic acid listed on the vitamin container. Also in this lab the acidity of different salt solutions were tested using
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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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Chapter 16 1. Sheila inherited 300 shares of stock‚ 100 shares of magenta and 200 shares of purple. She has a stockbroker sell the shares for her‚ use the proceeds for personal expenses‚ and thinks nothing further about her transactions. What issues does she face when she prepares her Federal income tax return? Sheila needs to treat the sale of her shares as a capital gain because she had the stock for investment purposes‚ and not as inventory (Hoffman‚ 2013‚ p 16-6--16-7). 3. Alison owns a
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work of art because it is lived in color and many events in life portray themselves in artsy ways. For Magdalena‚ here world is in vibrant lively colors. She looks at water and does not see the color blue or green. She sees aquamarine‚ turquoise‚ magenta‚ and chartreuse. “Light rain prickled the charcoal green canal water into delicate dark lace… (Page 19)” She also sees many things other people see but do not notice. “She walked away slowly along the wet stone wall that shone iridescent and the wetness
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Green is a color‚ the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 520–570 nm. It is considered one of the additive primary colors. On the HSV Color Wheel‚ the complement of green is magenta; that is‚ a color corresponding to an equal mixture of red and blue light (one of the purples). On a color wheel based on traditional color theory (RYB)‚ the complementary color to green is considered to be red.[1] In English‚ the word green is
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Binomial name Bougainvillea glabra Paper Flower (Bougainvillea glabra)‚ also known as lesser bougainvillea‚ is a species of bougainvillea and is the most common species of bougainvillea used for bonsai. It has shiny green‚ slightly hairy leaves and magenta colored bracts. Bougainvillea‚ a native of Brazil is an evergreen‚ climbing woody vine. Tiny white flowers usually appear in clusters surrounded by colorful papery bracts‚ hence the name paper flower. Single and double flower forms are available
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Determining the Molarity of Acetic Acid in Vinegar Abstract This experiment was done to determine the molarity of acetic acid in vinegar. The acetic acid in vinegar was titrated with a strong base sodium hydroxide to determine the equivalence point of this chemical reaction. The indicator phenolphthalein was used because the moment it changes color is on the basic side of the pH scale. To insure the experiment was done with the most accuracy‚ the two conductors of this experiment took three
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“All students under seventeen must evacuate Hogwarts now!” The Ravenclaw Head Girl shouts. Her eyes are red-rimmed and her hands are trembling‚ yet her voice remains as clear and strong as ever. “Seventeen-year-olds‚ you may choose to stay and fight or evacuate with the rest of us.” I see a steely determination in her eyes‚ and her hand goes to her wand pocket. She’s going to stay. I’m only in second-year‚ which means I have to go. Now. But. . . Hogwarts. Oh my Rowena Ravenclaw‚ Hogwarts has
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I could practically see the bruises already; dark purple and ugly. No matter‚ I repeated Junes’s words in my mind. No matter‚ no matter. It was a mantra as we explored. Anyone could tell that the walls had been painted in a extravagant shade of magenta‚ but it was faded and crumbling‚ instead a barely there hot pink color.
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Unit 3 Assignment 1 Christopher Bronson ITT San Diego Video Clip 1.07 – Ports and Connectors This video clip described the various external ports found on a motherboard. Serial Ports – 9 and 25 pin connectors (mouse‚ etc) Parallel Ports – 25 pin connectors (printers) Game Ports – 15 pin (joysticks‚ etc) PS/2 Ports – keyboards‚ mice Network Identification Card (NIC) – RJ-45 (connects to network) Modem – RJ-11 (phoneline connection to BBS‚ internet‚ etc) Video Connectors – Video Graphics Adapter (VGA)
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