mp4p5+group+2



Zinc Oxide ( ZnO)
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 * Treats diaper rash
 * Minor burns
 * Severly chaped skin
 * And other minor burns
 * Sun screen
 * Make up

Copper (II) Sulfate (CuSO4)

 * Harmful if swallowed
 * Do not beathe in

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Question: Will ZnO and CuSO4 dissolve? Hypothesis: I think it will only dissolve with a chemical bond introduced like heat, especially for ZnO. For CuSO4, I think it will dissolve with just tap water in time; process may be able to speed by mixing or shaking the substance in water around.

** Observation Answer ; Process of Iron and Sulfur being mixed together to make a mixture, FeS+2: **
==== <span style="font-family: Georgia,serif;">They started with a beaker of iron and sulfur. Secondly, mixed to make a mixture, (FeS+2). Thirdly, dumped mixture on the table. Then, heated a glass rod and stock a heated rod in the mixture. Fianlly, the mixture started burning and the top was red and around it was <span style="color: #800080; font-family: Georgia,serif;">black, this indicates a chemical bond occuring. It stuck to the glass rod, allowing the FeS+2 to be picked up as one object. -Christine, Rachel, and Mason  ====

<span style="color: #800080; font-family: Georgia,serif;">Zinc Oxide is a creamy milk-like fog.
<span style="color: #800080; font-family: Georgia,serif;">The slowly it decreases it's color and the substance sinks to the bottom of the test tube. <span style="color: #800080; font-family: Georgia,serif;">*

<span style="color: #800080; font-family: Georgia,serif;">Slowly the water is dissolveing the substance, CuSO4.
<span style="color: #800080; font-family: Georgia,serif;">Filterating the Copper II Solfate takes not long. <span style="color: #800080; font-family: Georgia,serif;">The substance goes right through the filter, still blue.

<span style="color: #800080; font-family: Georgia,serif; line-height: 0px; overflow: hidden;">﻿Mrs. Laguna, our pictures were takening on the gray cannon camera! (:

<span style="color: #800080; font-family: Georgia,serif; line-height: 0px; overflow: hidden;">thank youuu.!

<span style="color: #800080; font-family: Georgia,serif;">Your welcome! <span style="color: #800080; font-family: Georgia,serif; line-height: 0px; overflow: hidden;"> <span style="color: #800080; font-family: Georgia,serif; line-height: 0px; overflow: hidden;"> <span style="color: #800080; font-family: Georgia,serif; line-height: 0px; overflow: hidden;"> <span style="color: #800080; font-family: Georgia,serif; line-height: 0px; overflow: hidden;"> <span style="color: #800080; font-family: Georgia,serif; line-height: 0px; overflow: hidden;">

=<span style="color: #800080; font-family: Georgia,serif; line-height: 0px; overflow: hidden;">﻿Kool-aid lab- 4/11/11 =

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<span style="color: #800080; font-family: Georgia,serif;"><span style="color: #800080; font-family: Georgia,serif;"> ======

===<span style="color: #800080; font-family: Georgia,serif;">4/13/11 - Experiment; What happens when you add a certain amount of Kool-Aid to 10mL of water in a test tube? ===

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<span style="color: #800080; font-family: Georgia,serif;">Depending on the amount of substance you add the transparancy can be strong or their can be no transparency. If you look closely you can see each test tube has a different concentration of the Kool-Aid the one to the left has the least amount of Kool-Aid added the the water, .5g/mL. The middle test tube has 1.5 g/mL of concentration of the Kool-Aid. The test tube to the right has the most amount of concentration of the substance, Kool-Aid, 2 g/mL. ====== =<span style="color: #800080; font-family: Georgia,serif;">Notes to lab 4/19/11 =

=<span style="color: #800080; font-family: Georgia,serif;">Procedure: = <span style="color: #800080; font-family: Georgia,serif;">1) Get the test tube. <span style="color: #800080; font-family: Georgia,serif;">2) Get the hot water bath started turn it on all the way. <span style="color: #800080; font-family: Georgia,serif;">3) Measure 10g of the solute. <span style="color: #800080; font-family: Georgia,serif;">4) Zero the triple bean balance. <span style="color: #800080; font-family: Georgia,serif;">5) Put paper on the triple bean balance. <span style="color: #800080; font-family: Georgia,serif;">6) Get a lab scope and tap the solute on to the triple bean balance. <span style="color: #800080; font-family: Georgia,serif;">7) Put solute in the test tube. <span style="color: #800080; font-family: Georgia,serif;">8) 10 mL of the solvent (water) <span style="color: #800080; font-family: Georgia,serif;">9) Stir the solution down and up in the hot water bath. <span style="color: #800080; font-family: Georgia,serif;">10) Once it is dissolved put it in the test tube rack. <span style="color: #800080; font-family: Georgia,serif;">11) Then open up data studio and put the sensor in the test tube. <span style="color: #800080; font-family: Georgia,serif;">12) Watch the test tube in till you see the crystals. <span style="color: #800080; font-family: Georgia,serif;">13) Finally, Once you see the crystals record the temperature and your finished.

=<span style="color: #800080; font-family: Georgia,serif;">Notes on Chemicals: 4/26/11 = =<span style="color: #800080; font-family: Georgia,serif;">Calcium Chloride CaCl2 = <span style="color: #800080; font-family: Georgia,serif;">A salt of calcium and chlorine. It behaves as a typical ionic halide, and is solid at room temperature. Common applications include brine for refrigeration plants, ice and dust control on roads, and desiccation. Because of its hygroscopic nature, anhydrous calcium chloride must be kept in tightly-sealed air-tight containers. Soild at room temperture, Must be in closed container, Harmful if inhaled- keep away from face, Dissolves and reasles energy, and in foods but in small amount. =<span style="color: #800080; font-family: Georgia,serif;">Sodium Bicarbonate- NaHCO3 = <span style="color: #800080; font-family: Georgia,serif;">Its uesed to help heartburn and indigestion. White solid that looks like its crystaling but its a fine powder. Slightly saltly taste, and its is baking soda. In toothpaste, and will decomposed at 70 celius and carbon dioxide. =<span style="color: #800080; font-family: Georgia,serif;">Bromothymol Blue- C27H28Br2O5S = <span style="color: #800080; font-family: Georgia,serif;">Harmful if swollowed, inhaled or touched. Used as a acid base indicated. It can be yellow-acid happen if CO2 is added, Green- neutral (ph 7.0), and Blue- (ph>7.0) base.

=<span style="color: #800080; font-family: Georgia,serif;">Bromothymol Blue+Sodium Bicarbonate+ Calcium Cholride = =<span style="color: #800080; font-family: Georgia,serif;">4/29/11 = =<span style="color: #800080; font-family: Georgia,serif;">Check out our video on the lab(: = <span style="color: #800080; font-family: Georgia,serif;">[] <span style="color: #800080; font-family: Georgia,serif;">TSgH0xE

<span style="color: #800080; font-family: Georgia,serif;">5/10/11 <span style="color: #800080; font-family: Georgia,serif;">Lab of Balancing Chemical compond of A.)NaI and B.)Pb(No3)2

<span style="color: #800080; font-family: Georgia,serif;">Question: <span style="color: #800080; font-family: Georgia,serif;">How will the mass of the reactants compare to the mass of the products in a reaction that produces a solid precipitate?

<span style="color: #800080; font-family: Georgia,serif;">Hypothesis: <span style="color: #800080; font-family: Georgia,serif;">The mass of the products willbe more than the reactants.

<span style="color: #800080; font-family: Georgia,serif;">IV: Mass of the Reactants (g) <span style="color: #800080; font-family: Georgia,serif;">DV: Mass of the Products (g)

<span style="color: #800080; font-family: Georgia,serif;">1. Take empty beakers place on balance <span style="color: #800080; font-family: Georgia,serif;">2. Two empty test tubes placed in the empty beaker on the balance beam. <span style="color: #800080; font-family: Georgia,serif;">3.Record 'Mass of glassware'.

<span style="color: #800080; font-family: Georgia,serif;">A.) Mass of the glassware: 83.1 g

<span style="color: #800080; font-family: Georgia,serif;">4. Use dropper put (up to 2 droppers full) in one test tube of NaI <span style="color: #800080; font-family: Georgia,serif;">5. Use dropper put (up to 2 droppers full) in other test tube of Pb(No3)2

B.) Mass of Reactants + glassware: 85.1 g

5. Flip both test tubes over and placing then back into the beaker. C.) Mass of Reactants alone (b-c): 4.2 g   D.) Mass of products + glassware: 85.1 g    E.) Mass of products alone (d-c): 4.2 g