In this lab we tested the purity of water by looking for the chemicals free chlorine‚ chloride‚ sulfate‚ nitrate‚ copper‚ total hardness‚ iron‚ hydrogen sulfide‚ lead‚ pesticides‚ pH‚ total alkalinity‚ and total chlorine inside a water sample. The chemicals that produced a 0.0 result meant that there was no trace of that chemical inside the sample. The chemicals not found were copper‚ hydrogen sulfide‚ free chlorine‚ lead‚ iron‚ pesticide‚ and total chlorine. As a class we found the results of
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Edexcel GCSE Additional Science Unit ASCA: Additional Science Controlled Assessment Controlled Assessment Task C2 Valid from June XXXX to May XXXX Paper Reference(s) 5SA04/01 Chemistry Unit CCA: Chemistry Controlled Assessment Controlled Assessment Task C2 Valid from June XXXX to May XXXX Paper Reference(s) 5CH04/01 These controlled assessment tasks are valid from June XXXX to May XXXX. • For assessment in January XXXX centres must submit their moderation sample(s) by 10
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The Ammonia Fountain Experiment To set the ammonia fountain experiment up I made sure I had all the materials the lab required me to have which was: a Florence Flask‚ a 600 mL beaker‚ a Mohr pipet‚ distilled and tap water‚ a polyethylene wash bottle‚ a phenolphthalein indicator‚ concentrated ammonium hydroxide‚ sand‚ a heating mantle‚ a ring stand‚ clamps‚ a two-hole rubber stopper‚ one hole rubber stopper‚ and a medicine dropper. I then filled my beaker three fourths of the way up with tap water
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Result Soil was found to be acidic in nature as pH was recorded in the range of 5.7±0.260 C. The mean temperature during sampling month varied from 27.8+0.830C. The moisture content of the soil was 17 ± 1 % during studies (Table-1). From each rhizospheric soil‚ a single well distinct colony with different morphological characters was preferred for studies. On the basis of dissimilar morphological characters of the colonies‚ total twenty seven rhizobacterial isolates were isolated 7 from Coriander
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What is Alkaline Water? Alkaline water‚ also commonly known as ionized water‚ is water that has a pH level greater than seven. This water is generally produced with the aid of a faucet-based water ionizer‚ or "alkalizer" and features a number of health benefits. Making Alkaline Water These are some of the possible sources of alkaline water: * Lemon (& Lime) Water * pH Drops * Alkalising Powder * Mainstream Water Filters * Water Distillers * Reverse Osmosis * Alkaline
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A Research and Experiment On Permanent Markers F1C-G-036 2013 Science Fair Table Of Contents Research Research on Permanent Markers pg 1 Experiment Statement of purpose pg 2 Hypothesis pg 2 Materials pg 4 Procedure pgs 4-5 Observation and Results pg 6 Conclusion pg 7 Bibliography pg 8 Research We made research of this topic on the World Wide Web‚ we found out more about what a Permanent
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What ever the workout routines may be that you engage in on a daily or weekly basis you will need to hydrate yourself. You will probably find that you need to drink before‚ during and after your intense workout. Many people find that asking themselves questions like "What should i drink?" or "How Will What I Dink Affect my Workout Routines"? are good questions to ask‚ especially to see the results they are looking for. Over the past several years there’s been an amazing increase of the usage of
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Cesar Bizarroque Wesam Daker Bio 1107k-11 10/25/14 How pH levels impact tyrosinase activity Abstract: The purpose of our research utilizing the different pH levels was to test how a specific pH level would impact tyrosinase activity. First we added 4.0 mL of pH in each corresponding test tube and then added 0.5 mL of substrate (catechol) into each test tube. In the instructions it says to apply your 0.5 mL of tyrosinase (potato extract) as well but you have to blank the spectrophotometer before
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Hypothesis: If I increase the concentration of NaOH from 0.5M to 1M‚ then I will see the temperature slope increase in the reaction with an increased concentration because with an increase of moles‚ the particles will be colliding more often‚ therefore increasing the probability that the proper energy and alignment will occur to create more collisions in the same amount of time. Methods: List of Materials: • 110 mL of NaOH at 1 M (10 mL per run) • 110 mL of NaOH at 0.5 M (10 mL per run) • 220 mL
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As for the results of our tests‚ we came up with interesting findings. For the first test we conducted‚ pH‚ we came up with statistically significant results. Our p-value was .002‚ well below the .05 threshold. The control group’s mean pH was 6.65‚ whereas the experimental group’s was 6.46. This resulted in a change in pH of .19‚ making the water more acidic. As for the Q-values‚ the control group’s had a Q-value of 81 and the experimental had a Q-value of 75‚ that’s a decrease of 6‚ a significant
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