37.32 g. What is its density? 1.2 If 116 g of ethanol is needed for a chemical reaction‚ what volume of liquid would you use? The density of ethanol is 0.789 g/mL 1.3 Battery acid is 40.0% sulfuric acid‚ H2SO4‚ and 60.0% water by mass. Its density is 1.31. Calculate the mass of pure H2SO4 in 100.0 mL of battery acid. 1.4 How many moles of atoms does 136.9 g of iron metal contain? 1.5 A stack of 500 sheets of typing paper is 1.9 inches thick. Calculate the thickness‚ in inches and in miles
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intensity of the color and the absorbance of the liquids with the different solvents. Solvent Results from colorimeter 0.001 Acid (Hydrochloric) 0.358 Ethanol 0.132 Hot water 0.984 Cold water-distilled water (control) 0.057 CONLUSION: The results show that hot water gave the highest average absorbance reading from the colorimeter‚ followed by hydrochloric acid‚ ethanol and cold water‚ in descending order of absorbance. The absorbance of the solvent that was hot water affected the most
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Dehydration refers to a chemical reaction where the reactant loses a water molecule. In the presence of a strong acid like 85% phosphoric acid‚ an alcohol like-2-methylcyclohexanol can be dehydrated to form an alkene. In this experiment‚ alcohol was dehydrated by E1 elimination‚ in order to synthesize cyclohexene. First‚ alcohol is protonated by the acid. Second‚ during E1 elimination‚ a carbocation is formed by the removal of an oxonium ion to yield a secondary and a tertiary carbocation. The receiving
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the reactions that you propose to use for your synthesis‚ making certain that you choose reactions that will give your desired products as the major products. Br 11 8. (10 points) When (R)-4-bromopentanoic acid‚ 1‚ is treated with sodium hydroxide‚ (R)-4hydroxypentanoic acid‚ 2‚ is isolated as the only product. Using curved arrows to represent the movement of electrons‚ write a mechanism for this reaction that explains the formation of the product with particular attention to its observed
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Synthesis (Heme Analog) I. Purpose of Experiment and Introduction The purpose of this lab experiment is to prepare meso-tetraphenylporphin (TPP) and its copper‚ cobalt or zinc complex by condensing benzaldehyde with pyrrole in boiling propanoic acid. II. Introduction and Background There are two types of proteins that function as oxygen carriers: myoglobin (stores the oxygen) and hemoglobin (present in red blood cells and is responsible for oxygen transport). The heme unit is
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butanoate belong to? 1KU Methyl butanoate can be broken down to form an alkanol and an alkanoic acid. b) Name this type of reaction.1KU c) Draw the full structural formula for the alkanoic acid and the alcohol formed from the breakdown of methyl butanoate. 2PS 2. Ethanoic acid is more commonly known as vinegar. a) Draw the structure of ethanoic acid.1KU b) Ethanoic acid can be reacted with methanol to form an ester‚ which is used
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Compound 50‚ like its known analogue 3‚ involves an α‚β-unsaturated ketone‚ an acid-sensitive reactant‚ which prevents its direct synthesis in presence of protic solvents by refluxing. Despite of this characteristic‚ 50 was formed smoothly in 5 minutes by grinding chemistry‚ solely as E-isomer‚ without any evidence of decomposition after 1H and 13C MNR analysis. This synthetic approach provides easy access to such α‚β-unsaturated N-acylhydrazones‚ which are building blocks in the synthesis of nitrogen-containing
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. . . . . . . . . . . . . . . . . . . . . . . . . . What Causes Nucleic Acids to Migrate at Unexpected Migration Rates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What Causes Commercial Preparations of Nucleic Acid Markers to Smear? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What Causes Fuzzy Bands? . . . . . . . . . . . . . . . . . . . . . . . . . . . Elution of Nucleic Acids and Proteins from Gels . . . . . . . . . . . Detection . . . . . . . . .
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Chemistry 12 lab 20-D Chemistry 12 Joanna Bragiel TA Solution | Colour of Uni. Indicator | pH | Type of hydrolysis | NaCH3COO | Blue- green | 9 | Anionic | NaCl | Green | 8 | Neither | (NH4)Cl | Green- yellow | 7 | Neither | (NH4)2SO4 | Green- Yellow | 7 | Neither | AlCl3 | Red-orange | 3 | Cationic | Ca(NO3)2 | Murky green | 7 | Neither | Fe2(SO4)3 | Red | 2.5 | Cationic | Na2CO3 | Dark blue | 9.5 | Anionic | Na3PO4 | Orange-red | 3 | Cationic | K2SO4 | Green | 7 | Neither
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crush the tablet into a fine powder using the pestle. 3. Weigh about 0.2 grams (+0.01 g) of the ground up tablet powder and transfer it to a clean 250 mL Erlenmeyer flask. 4. Transfer about 20 mL (+0.02 mL) of the HCl to the flask from the acid buret located on the reagent bench. Record the molarity of the HCl and the initial and final volume readings from the buret (+0.02 mL). 5. Swirl the flask to help dissolve the antacid.
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