Preparation of the NaOH Solution Mass of NaOH before standing = NaOH before standing (g) – beaker (g) = 111.490 g – 110.970 g = 0.520 g Mass of NaOH after standing = NaOH after standing (g) – beaker (g) = 111.500 g – 110.970 g = 0.530 g Standardization of the NaOH solution TRIAL I Volume of NaOH solution = Final reading of buret - Initial reading of buret = 13.80 mL – 0.00 mL = 13.80 mL Converting the Volume (mL) to Volume (L) Volume (liters) = Volume (mL) x
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never run out energy. The most important is renewable energy can generate energy by emission very little carbon dioxide if compare to those non-renewable energy. Thus‚ renewable energy can reduce the impact of pollution and global warming issue. “Liter of Light” operates with the theory of solar energy with using several materials. Solar energy is one type of popular renewable energy. Solar energy‚ radiant light and heat from the sun‚ has been harnessed by humans since ancient times using a range
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Chemistry SL! Research Question! How is the solubility of sodium hydroxide (NaOH) in water affected by temperature? ! ! Introduction ! Sodium hydroxide is categorised as metal halide salt‚ composed of sodium and chlorine.! The ions present in the solid crystals of potassium chloride dissolve and gain mobility in water. When potassium chloride is dissolved in water‚ the following endothermic reaction occurs:! NaOH(s) + H2O(l) → Na+(aq) + OH–(aq) + H2O(l)! This reaction takes place because
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amazing idea come about? The concept was first conceived in 2002 by Alfredo Moser‚ a mechanic in Sao Paulo‚ Brazil‚ to light his workshop when his neighbourhood was suffering energy shortages‚ enabling him to continue working. His neighbours‚ intrigued by the idea‚ soon started following suit‚ adding the bulbs to their homes in kitchens‚ bathrooms and living areas where electric light was prohibitively expensive and inefficient. The bottle bulb revolution was then further enhanced by The “MyShelter
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Number of Drops of HCl and NaOH on the Net Change in the pH of Plant‚ Animal‚ and Nonbiological Solutions Research Question: How do plants and animals respond to changes in pH? Analysis Questions: Summarize the effects of HCl and NaOH on the tap water. HCl is an acid and when in tap water‚ dissociates into H+ and Cl-. Since it releases the H+ ion in the tap water‚ it raises the concentration of H+‚ which lowers the pH of the tap water. Unlike HCl‚ NaOH is a base. NaOH is a base because when in the
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Hitler’s final solution was to eliminate millions of Jews from Germany. It took place within Germany. After the British‚ Russian‚ and American troop invaded Germany during the final parts of WWII. Resulting in the freeing of the remaining Jews in the camps. After these horrific events‚ Jews were greatly affected by “Hitler’s Final Solution”. Hitler’s final solution was a horrific event that Jews had to go through. Jews Were basically treated like animals. Nazis would put a star on their clothing
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made up of the strong base NaOH but also has other substances in it to efficiently clean a lodged pipe such as aluminum‚ sodium nitrate‚ and sodium chloride. All the homeowner ahs to do while using drain cleaner is to pour I down the clogged drain and maybe run some water‚ inside the pipe the chemicals go to work for you. But even though it sounds simple precaution must be taken in order to prevent injury to our body. NaOH must be produced correctly before it can be used in drain cleaner‚ a very
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Introduction: The purpose of this lab was to separate and purify a compound. This was achieved using techniques that allowed the extraction of the acid‚ the isolation of the neutral compound and the melting point classification of the neutral compound to test the purity of the sample. Chemical Reactions: HA + OH- A- + H2O R-COOH + OH- R-COO- + H2O Organic Acid Insoluble in H2O Conjugate base Soluble in H2O Procedure: A 0.170g sample consisting of a mixture of 0.110g
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Caitlin Kamplain Descriptive Essay Mrs. Barnard Period 1 9-2-14 ‘Tis The Season Just because we all grow up physically does not mean we have to allow ourselves to become numb to all the things that made us feel giddy as a child. Everyone knows how exciting it can feel to wake up on Christmas morning. All December long‚ we work to ring in the Christmas spirit by giving to others‚ displaying festive colors of green and red‚ and enjoying the constant jingle of holiday music in the background
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A compilation of elegant word choice and syntax‚ “The Sun and Moon” is a poem written by author Chrysanthemum Ti. In this poem‚ Ti develops a story‚ told in a first person point of view‚ which illustrates both the gradual resentment and contentment felt by the narrator as she compares her successes and failures to those of her brother. In creating this tale‚ Ti utilizes a shift in tone as well as two significant metaphors to suggest that with time‚ perceptions change‚ which can allow for a greater
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