BUFFER SOLUTION (ACID) An acidic buffer solution is simply one which has a pH less than 7. Acidic buffer solutions are commonly made from a weak acid and one of its salts - often a sodium salt. Objectives: 1. Measure the pH of the unknown solution first with indicators and then with pH paper. 2. compare the buffer solution with both a strong acid and a weak acid materials: 2 30 mL beakers 2 100mL volumetric flask 1 10mL pipet 2 aspirator 1 50mL graduated cylinder 1 10mL graduated
Free PH Acid dissociation constant Acid
"Data Compression and Data Processing” Please respond to the following: * Explain whether or not you believe there is a discernible difference in efficiency between compressing and decompressing audio data and compressing and decompressing image data. Provide at least three reasons for your argument. There are efficiency differences between a given compressions for audio or image‚ this is due to: 1. The difference in data‚ example bmp‚ jpg‚ gif of the same image‚ mp3‚ wav‚ ogg for
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beaker containing an unknown salt‚ x. The salt is crystalline‚ deliquescent and colorless. The student is asked to perform test and observation on the salt to determine the cation and anion present. HYPOTHESIS: Perhaps by using the flame test or reacting salt x with NaOH‚ or NH4OH the cation could be distinguished by observing the color changes or solubility while reacting salt x with H2SO4 or a mixture of copper turnings and concentrated sulphuric acid the anion of the salt could be found. AIM:
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Citric acid reacts rapidly with iron‚ but is not itself the rusting of iron. The water in the lemon juice helps iron rust‚ but in the presence of air. The same happens when you open bottle of Coca-Cola‚ including citric acid‚ phosphoric acid‚ carbonic acid and other things in the fall for the taste. Citric acid has an advantage over some other acids‚ because it is less corrosive‚ not as dangerous to the environment‚ while remaining efficient‚ cheap (but not as cheap as the old battery acid).
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Kant published the Critique of Pure Reason in 1781. Kant’s goal was to determine the limits of pure reason which means that he wants to know what reason alone can determine without the help of the senses or any other faculties. Kant is encouraged by Hume’s skepticism to doubt metaphysics existence. Kant makes a differentiation between priori and posteriori knowledge and between analytic and synthetic judgments. A posteriori knowledge is knowledge from experience and a priori knowledge is the necessary
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SALT IN CYPRUS | | “We ate bread and salt together” (Adage from Cyprus) | | Paper originally done by info@mybestessay.com submitted recently to a girl in Regents College Executive Summary “We ate bread and salt together” (Adage from Cyprus) Cyprus was an important producer and trader of salt till the late 1980s in which the cost of gathering and transporting soil exceeded the salts’ sales. Since then‚ Cyprus has been importing salt despite its richness in salt lakes and in crystal
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H010: Adjustment of Emotional Score of English Boys and Hindi Girls 1 – Boys‚ 2 - Girls and 1 - English and 2 – Hindi Group Statistics | | Gender | N | Mean | Std. Deviation | Std. Error Mean | Emotional Score | Boys | 175 | 10.9829 | 3.97329 | .30035 | | Girls | 120 | 13.9750 | 5.18152 | .47301 | Independent Samples Test | | Levene’s Test for Equality of Variances | t-test for Equality of Means | | F | Sig. | t | df | Sig. (2-tailed) | Mean Difference | Std. Error Difference
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Systems Media Table: Part Two Alaric Delos Reyes HCS 482 Health Care Informatics April 4‚ 2013 Elena Purcar Systems Media Table: Comparison Using this table‚ prepare and submit a 30 - 50 word response in each box that describes the purposes for each system‚ and gives examples and uses for each system. In addition‚ prepare and submit an APA-formatted reference page with at least five references. |System |Purposes |Examples
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Drinking too much water can lead to hyponatremia‚ water intoxication‚ water poisoning and death Liquid H2O is the sine qua non of life. Making up about 66 percent of the human body‚ water runs through the blood‚ inhabits the cells‚ and lurks in the spaces between. At every moment water escapes the body through sweat‚ urination‚ defecation or exhaled breath‚ among other routes. Replacing these lost stores is essential but rehydration can be overdone. There is such a thing as a fatal water overdose.
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1. Prepare the salt‚ sugar‚ sand‚ and measuring teaspoon. 2. Once the ice cubes are set up in their bowls‚ quickly add the substances to the ice cubes so that they don’t melt before adding the substances. 3. Place three ice cubes quickly into each of the four bowls. 4. Arrange the ice cubes so that only the corners are touching‚ forming a triangular shape. 5. Carefully sprinkle ½ teaspoon (tsp.) of salt over the ice cubes in one bowl. 6. Sprinkle ½ tsp. of sugar over the ice cubes in another bowl
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