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- _NH2 `OH + H2N° 1. ÓH2,4-Pentanedione is a considerably stronger acid than is acetone (Chapter 19). Write a structural formula for the conjugate base of each acid and account for the greater stability of the conjugate base from 2,4-pentanedione.Part A The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washed-away blood. Luminol is so sensitive that it can detect blood that has been diluted 10,000 times. A basic solution of luminol is often sprayed onto surfaces that are suspected of containing minute amounts of blood. The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0 g of luminol into a total volume of 75.0 mL of H2O. What is the molarity of the stock solution of luminol? Express your answer with the appropriate units. Luminol has a molecular weight of 177 g/mol. • View Available Hint(s) HẢ molarity of luminol solution = Value Units Submit Part B Before investigating the scene, the technician must dilute the luminol solution to a concentration of 6.00x10-2 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of…
- Explain Why the circled carboxylic acids have low pka when in water and write the reaktionThe conjugate base of benzoic acid is used as a 72 preservative. Write the equilibrium reaction for this weak acid in aqueous solution. ОН Benzoic acid a. What substances are present at equilibrium? b. At equilibrium, are reactants or products favored, and why? c. Are the concentrations of benzoic acid and benzoate constant or changing at equilibrium? d. What happens to the equilibrium if more hydronium ions are added to the reaction? e. Label the conjugate acid-base pairs.1) Hg(OAc)2, MeOH 2) NaBH4
- Part B Write the balanced chemical equation for the dissociation of a-hydroxypropanoic acid in water. Express your answer as a chemical equation, using condensed formulas to represent the compounds in the equation. ΑΣΦ ? C₂ H₂ (OH)COOH + H₂O=C₂ H₂ (OH)COO¯ + H₂O+ A chemical reaction does not occur for this question. Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remainingacetic acid + sodium acetate balanced equilibrium equationBenzoic acid and water were added to the test tube labeled "b.a." After stirring the mixture, sodium hydroxide (NaOH) vas added until the solid disappeared. Finally, hydrochloric acid was added drop by drop until blue litmus paper turned red. The solid present in the test tube after the addition of HCI is most likely: benzoic acid benzyl acetate O benzyl chloride sodium benzoate
- C. Nitric acid and perchloric acid are labelled with the pictogram below. Would you store the glacial acetic acid with these acids? Explain your decision. Asid nitrat dan asid perklorat dilabel dengan piktogram di bawah. Adakah anda akan menyimpan asid asetik glasial dengan asid-asid tersebut? Jelaskan keputusan anda. * d. Explain the probability of forming a combustible mixture if a 1 L of glacial acetic acid is used in a 3 x 4 x 2.5 m room? The specific gravity is 1.049, relative to water and the vapor density is 2.1, relative to air. The Lower Explosive Limit (LEL) is 4 % by volume of air and the incomplete mixing factor of 5.Which of the following can inhibit nitrification? 1. Low HNO2 2. High NH3 3. High NH4+ 4. pH < 5 5. Low HCO3- 6. High HNO2 7. High NO2Complete the following reaction and write the IUPAC names of the two products. heat CH3CH2CHCNH, + H20 + HCI CH3 Submit Answer Retry Entire Group 2 more group attempts remaining he y-axis and pH on the x-axis. If the points stv N MacBook Air