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Chemistry

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AP Chemistry
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Reactions of alcohols

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chemrevise.org 1 Reactions of alcohols N Goalby Chemrevise.org Solubility of alcohols in water ? The smaller alcohols (up to 3 carbons) are soluble in water. The longer the hydrocarbon chain the less soluble the alcohol ? The hydrocarbon part of the chain cannot hydrogen bond with water molecules whereas the OH part can form hydrogen bonds with water. As the hydrocarbon chain becomes longer the OH group is blocked from forming hydrogen bonds with water and the alcohol is no longer soluble. chemrevise.org 2 Different types of alcohols Propan-1-ol Primary C O H H H C H H C H H H C H H C H C H H H O H H Primary alcohols are alcohols where 1 carbon is attached to the carbon adjoining the oxygen Secondary alcohols are alcohols where 2

Final

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Text automatically extracted from attachment below. Please download attachment to view properly formatted document.
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AP Chem Hydrate Lab

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Robert Partner: Grace Park Friday, May 27, 2016 Period 1 AP Chemistry: Determination of the Formula of a Hydrate Lab Materials: ? Iron Ring ? Hydrated magnesium sulfate crystals ? Ring stand ? Crucible with a lid ? Balance ? Clay triangle ? Bunsen burner ? ? Crucible Tongs Procedure: 1. Rinse your crucible and lid with water and dry thoroughly using a paper towel. 2. Suspend crucible and cover in clay triangle and heat with bunsen burner for roughly 2-3 minutes. 3. Remove with crucible tongs and let it cool for about 1-2 minutes. Measure the mass of the crucible and lid. 4. Place about 4 grams (3.5-4.5 grams) of your hydrated crystal in the crucible, cover, and record the mass.

AP Chem Mustard Lab

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Lara Saif Group Members: Alice Banuelos, Grace Park Period 1 AP Chemistry Lab: Determine the Mass Percent of Acetic Acid in Mustard MATERIALS: ? 2 packets of mustard ? Beaker ? Balance ? 0.50M NaOH (provided) ? Stirring machine (+stirring magnet) ? Buret ? Strainer ? Distilled water (provided) PROCEDURE: 1. Measure the beaker using the balance and zero it. 2. Open one of the mustard packet and squeeze out the mustard into the beaker that is on the balance, and record the mass. 3. Place the stirring machine under the buret containing the provided 0.5M of NaOH. 4. Place the beaker containing the mustard onto the stirring machine. 5. Add distilled water to the mustard inside the beaker to increase the fluidity of the mustard, then

AP Chem Hand Warmer Lab

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Grace Park Group Members: Lara. Kanika, Kevin Period 1 2/17/16 Hand Warmer Inquiry Lab Materials?: ? 10g of NaCl (Non-toxic) ? 10g of Na? 2? CO? 3 ? (Body tissue irritant) ? 10g LiCl [Moderately toxic (ingestion)] ? Balance ? Tap water ? Graduated cylinder ? Stirring plate ? Calorimeter ? Plastic weight tray ? Thermometer ? Stirring magnet Procedure?: 1. Measure 45 mL of water in the graduated cylinder. Record the exact volume on a table. 2. Measure and record the temperature of the water for the initial temperature, and pair water into the calorimeter. 3. Place the plastic weight tray on the balance, and zero it out. 4. Place 5g of NaCl on the weight tray, and measure and record the exact mass.

AP Chem Unknown Substance Lab

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Grace Park Partner: Kanika Gulia Period 1 Unknown Substance Lab Materials?: ? Pipets ? Test tubes ? Test tube rack ? Beakers with unknown substances ? Waste beaker ? Phenolphthalein ? AgNO3 ? Datahub ? Conductivity meter ? pH meter Procedure?: 1. Put 40 drops of each solution into its respective test tube (everything is numbered from 1 to 6). 2. Put one drop of phenolphthalein in each test tube to determine which solutions are basic (the indicator turns pink if the the solution is basic). 3. Use the conductivity meter with the Datahub to determine the conductivity of each solution and record the values in the data table. 4. Use the pH meter with the Datahub to determine the pH value of each solution.

LAB PENNY

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Name: ________________ Chamberlain Class: _______ Composition of a Penny Lab In this lab you will determine what percentage of a penny is made of copper, and what percentage of a penny is made of zinc. This lab depends upon the fact that copper is less reactive than zinc. We will use hydrochloric acid to dissolve the zinc without harming the copper. Procedure: Day #1 Get two post-1982 pennies. File 3 small grooves along the edge of each penny to expose the zinc interior. Make sure you can tell the pennies apart! Find the mass of each penny. Record the mass and the year each was minted. Place the pennies in the bottom of a specimen cup or beaker. The pennies should not touch.

Formal Lab

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Chemistry
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Lab?Report? Sania?Hussain? Introduction? According?to?the?arrhenius?acid?theory,?an?arrhenius?acid?is?a?substance?that?produces? hydrogen?ions?as?the?only?positive?ions?in?the?solution.?While?the?Bronsted?Lowry?acid?theory? states?that?an?Bronsted?Lowry?acid?donates?a?proton.?Based?on?these?two?theories?an?acid?can?be? defined?as?a?substance?that?produces?positive?hydrogen?ions?in?an?aqueous?solution?and?is?a? proton?donor?(?DeCoste?130?.)?An?acid?s?pH?level?is?below?seven.?Some?examples?of?acids? include:?hydrochloric?acid?(HCl),?ethanoic?acid?(CH? 3? COOH),?or?things?like?vinegar?and?lemons.? A?base?however?is?the?opposite.?An?arrhenius?base?produces?hydroxide?ions?as?the?only?negative?

Unit 1 SigFigs review

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AP Chemistry Name Review: Test #1 1. The distance between carbon atoms in ethylene is 134 picometers. What is that distance in meters? 2. The area of a 15-inch pizza is 176.7 in2. Express this area in square centimeters.? 3. A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g. What is the density of concentrated sulfuric acid? (Assume water has a density of 1.00 g/cm3 at the temperature of the measurement.) 4. Determine the answer that expresses the result of this calculation with the correct number of significant figures and with correct units. 16.18 cm ( 9.6114 g ? 1.4783 cm2 =

moles notes unit 2

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Chapter 3 The Mole The Mole: The amount of a substance that contains the same number of ?entities? as 12 grams of Carbon-12 (C-12) 1 mol C-12 = 6.022 x 1023 Carbon atoms 1 mol H20 = 6.022 x 1023 molecules H20 1 mol H20 = 2 mols H and 1 mol O (ratio never changes) Definitions The mole: the SI unit for amount of substance Specifies the # of objects in a fixed mass of substance Avogadro's #: 6.022 x 1023 All isotopes are considered to have the same atomic mass The mass on the periodic table is an average of the masses of the naturally occurring isotopes The atomic mass of an element expressed in amu is numerically the same as the mass of 1 mole of atoms of the element expressed in grams Example:

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