After the HCl was added‚ the solution turned a milky white color. It was important to not add too much HCl because excess HCl would have caused an aqueous complex of PbCl2 and AgCl to form instead of the desired solid PbCl2. The mixture was then centrifuged in order to let the solid particles of the three ions to fall to the bottom. Another drop of HCl was added to test if the reaction had been completed. If the solution were to turn milky white again then it would’ve signaled an incomplete reaction
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u win the rat race you are still a “RAT”!!!!!!!!!! long work hours‚ unpaid overtime‚ stressful job‚ time spent commuting‚ less time for family life and/or friends life is the common problem shared by almost everyone on this planet.Here rat race is a very common attribute to describe the dull‚ endless & monotonous lifestyle of the new generation which makes them aloof of the relatives‚ friends and a more enthusiastic and encouraging life. Rat race describes the mad behaviour of a rat running endlessly
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deGrouchy Mrs. Psitos Math IMP 2H 18 December 2007 Growth of Rat Populations This POW is about the growth of a rat population over a year. Two rats‚ one male and one female‚ are put on an island that has ideal conditions for rats. The female rat has a litter of six rats the first day‚ and will have a litter every forty days after that. There are three important things to remember‚ and they are that the number of rats in every litter is six‚ three females and three males. Secondly‚ every
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the selective plates |Plate |Plasmid |Contents of plates |Number of colony | | | | |White |Blue | |1 |Ligation mixture |Ampiclillin + X- gal + IPTG |10 |0 | |2 |Ligation mixture |Ampiclillin + X- gal + IPTG
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:___________ Chemistry Laboratory 101__ Date Submitted[1] :___________ Members[2]: Instructor’s Initials[3] :___________ 1. _____________________ 2. _____________________ 3. _____________________ 4. _____________________ Laboratory Report Sheet The Bunsen Burner Activity 1 Objectives:4 1. ________________________________________________________ 2. ________________________________________________________ 3. ________________________________________________________
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conditioning in rats. The purpose of the experiment was to condition rats to suppress certain hunger behaviors such as water licking. Burdick and James paired the neutral stimulus of white light with shock in a “test chamber” to see if rats would develop an association between the two stimuli. Naturally‚ shock induces a fear-like freezing behavior‚ and after being conditioned the rats displayed the same behavior but only to the white light. Furthermore‚ they would then place the rats back in their
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JETTY RATS Jetty Rats‚ by Phillip Gwynne‚ is a novel that explores the qualities of friendship. The text positions the reader to believe that friendship is a very important aspect in everyday lives and that it will be very helpful‚ but there will also be a lot of complex situations along the way. Friendships can grow between people of different genders‚ but love will become a factor. Secondly‚ friendships may grow between people who have close similarities but also differences. Thirdly‚ friendships
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on as well as overall plant growth. We did this by exposing some plants to light while others not‚ and by applying the synthetic fertilizer‚ MiracleGro‚ in a likewise fashion. We hypothesized that plants that do not receive sunlight should be white (or at least not
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TITLE OF EXPERIMENT 2 : DILUTION 2.1: OBJECTIVES Upon completion of this experiment‚ students should be able to: 1. determine the concentration of coloured solution such as FeCl3 by using dilution and colour differentiating (colorimetric) techniques. 2.2: INTRODUCTION Concentration can be expressed in many different ways such as percentage volume and percentage weight etc. In laboratory‚ normally concentrations were expressed as molarity and normality. Molarity is the
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OLD COINS TURN TO GOLD DESIGN: Problem or Research Question: How does zinc effects the color change in a copper penny? Hypothesis: If copper and zinc comes together‚ then it will form brass‚ which gives gold color to copper penny. Variables: There were no variables at this experiment PROCEDURES: Materials: Zinc (SN) filling‚ 3M NaOH solution‚ Copper penny‚ tongs‚ Hot plate‚ 100 ml beaker‚ 250 ml beaker‚ Bunsen burner‚ Water‚ Spoon. Procedure: First‚ we turned on the hot plate.
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