Lab 1: Determining the pK a of PNP PNP or paranitrophenol is an organic compound that undergoes changes when the pH is manipulated of the solution. PNP is also an acid/ base indicator. The compounded starts off as internal conjugated ring with the hydroxyl group and the nitro group single bonded to the aromatic ring. This occurs at the pH of 5. At this point the aromatic compound is colorless and is in the ultraviolet range. However‚ as the pH begins to increase the hydroxyl group deprotonates
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in these defense mechanisms with respiratory dysfunction. 2. Describe effects of aging on the respiratory system. 3. Identify significant assessment data that should be obtained from a patient. 4. Describe pH and the mechanisms that regulate acid-base balance. 5. Describe the common causes‚ pathophysiology‚ compensatory mechanisms‚ and clinical manifestations of respiratory and metabolic acidosis and alkalosis. 6. Interpret arterial blood gas results. 7. Identify the signs and symptoms of inadequate
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kidneys excrete Hydrogen (acid) & retain bicarbonate (base) to help maintain pH *Renal compensation is slow 2 LET’S LOOK AT THE 4 SITUATIONS THAT CAN OCCUR ACIDOSIS *develops when: *excess accumulation of acid *decreased amount of alkali *can be respiratory or metabolic METABOLIC ACIDOSIS ABG: Low pH (below 7.35) Decreased HCO3 (below 22) PaCO2 will be normal Remember both the pH & HCO3 will be low METABOLIC ACIDOSIS *caused by too much acid in the body or loss of bicarbonate
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EXERCISE 10: Acid-Base Balance Student Name: Landy Jean-Baptiste Student ID: 4304736 Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. You are only required to perform Activity 1 & 2 in this simulation. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise10_JohnSmith.doc
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Blood gases and acid base balance Normally we do venous/capillary blood gases. Arterial blood gases are only done in the very sick children‚ who have been intubated/ventilated and have arterial lines in situ (usually in the theatre prior to transfer to the PICU in Newcastle. Here is a stepwise approach to blood gas analysis. STEP 1: [pic] STEP 2: Look at pCO2 [pic] STEP 3: Look at Bicarbonate & Base excess (BE) [pic] Base excess (BE): Base excess is the
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| | |Acid-Base Indicators: Spectroscopic Method of Determination of Ka | |Sahib Kaur | |
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most simple bath bomb recipes have: baking soda‚ citric acid‚ and cornstarch. When baking soda and citric acid are mixed together with some water‚ they undergo a chemical reaction. Specifically‚ this reaction involves acid-base chemistry‚ since the baking soda—also known as sodium bicarbonate (NaHCO3)—is a weak base‚ and citric acid (C6H8O7) is a weak acid. This reaction is shown in Equation 1‚ below. As you can see from Equation 1‚ the acid-base reaction produces carbon dioxide (CO2) gas. This gas
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In this experiment the initial mass of the sodium carbonate used was 2.69g. In each titration‚ 3 drops of methyl orange was added to the sodium carbonate solution. With this information the titration can begin‚ and the results obtained are shown below: Titration readings Titration Rough 1 2 3 4 5 Initial 0.00 4.30 22.00 21.00 15.00 25.90 Final 4.30 22.00 38.60 37.60 32.60 42.20 Titre (cm3) 4.30 17.70 16.60 16.60 17.60 16.30 Therefore‚ the average titre would be calculated as follows;
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primary standard to analyze acid and base solutions Acid-base titration Lab 13G Jake Shewchuk Lab 13C Dominique Genereux Purpose 13G: 1. To prepare a standard solution of oxalic acid and use it to standardize an unknown sodium hydroxide solution. Purpose 13C: 1. To titrate a hydrochloric acid solution of “unknown” concentration with standardized 0.5M sodium hydroxide. 2. To titrate a hydrochloric acid solution of “known” concentration
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physioex 9.0 Review Sheet Exercise 10 Acid-Base Balance Name ___ Lab Time/Date ___ Activity 1 Hyperventilation Describe the normal ranges for pH and carbon dioxide in the blood.___ ___ ___ Describe what happened to the pH and the carbon dioxide levels with hyperventilation. How well did the results compare with your prediction? ___ ___ ___ Explain how returning to normal breathing after hyperventilation differed from hyperventilation without returning to normal breathing. ___ ___ ___
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