Concept explainers
13*32 Black-and-white photography is a commercial process that involves a phenol. Black-and-white film is coated with an emulsion containing silver bromide or silver iodide crystals that become activated by exposure to light. The activated silver ions then react with hydroquinone in the developing stage as shown in the following balanced equation.
All silver halide not activated by light is removed in the fixing process, and the result is a black image (a negative) left by the deposited metallic silver where the film had been struck by fight. In this
- What is reduced and what is the reducing agent?
- What is oxidized and what is the oxidizing agent?
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Chapter 13 Solutions
OWLv2 for Bettelheim/Brown/Campbell/Farrell/Torres' Introduction to General, Organic and Biochemistry, 11th Edition, [Instant Access], 1 term (6 months)
- PLEASE ANSWER ON WHAT IS INSTRUCTED IN THE ATTACHED PHOTO. PLEASE PROVIDE A PRECISE SOLUTION. THANK YOU VERY MUCH.arrow_forwardPlease answer question 20 Part Aarrow_forwardA researcher reconstituted a vial of 750 mg Cefuroxime Sodium Powder for Injection with 6mL of sterile water for injection. The reconstituted solution was dark amber-colored solution. The package insert states that solution colors range from clear to yellow depending on concentration, diluent, and storage conditions. The researcher was then hesitant to give the patient the solution due to its unusual dark color. Five portions were taken from a batch of cefuroxime sodium. Prior to testing in the instrument, each part was subjected to one of the following conditions: Conditions Specifications Temperature Portion 1: 8°C ± 2°C Portion 2: 30°C ± 2°C Portion 3: 40°C ± 2°C Light Portion 4: Kept in the dark Portion 5: Exposed to direct sunlight 1. Of the several solutions prepared, which absorbance value results should be compared with each other to answer the questions of the pharmacist? Explain your answer.arrow_forward
- In any manufacturing process, reaction monitoring ensures that a chemical reaction proceeds as expected. Table 1 shows the monitoring data for the formation of chlorohexane, collected using a technique called gas chromatography. Note that the concentrations of the chlorohexane solutions are given in millimoles per litre (mmol l–1). The abbreviation mM (millimolar) is frequently used. Plot a graph of the data in Table 1. The graph should be drawn on graph paper or use fine grid if it’s drawn on Excel. Elapsed Time/Hours Concentration of Chlorohexane/mM 0 0 2 40 4 65 6 80 8 90 10 95 12 99arrow_forwardPlease write the balanced chemical equations on the observations of heating NaHCO3 and bubbling the gas made by decomposition through the Ca(OH)2 solution in the presence of bromothymol (blue acid base indicator solution) Please write out in chemical equation form!arrow_forwardPlease help me how to solve this question. Thank you very much.arrow_forward
- Part of a routine blood test is to check the level of sodium in your blood. It is optimum to have between 135 and 146 micromoles per milliliter of sodium. Having an amount too high or too low can cause a variety of health issues. Sodium has a molecular mass of 23 grams per mole [g/mol]. A blood sample is 1.3 [mL]. Determine the minimum mass of sodium that must be present to surpass the upper optimum limit of 146 micromoles per milliliter.arrow_forwardPhosphoric and acetic acids are considered to be weak acids; that is, they do not dissociate completely into ions. Were there any differences in reaction rates with magnesium between these two acids? If so, what distinguishing feature of the acids might explain the differences?arrow_forwardHelp me please...arrow_forward
- please note if its (aq), (l) or (s)arrow_forwardOne application of adsorption on surfaces is to measure the ability of acti- vated charcoal to adsorb acid. (Activated charcoal, a form of treated carbon, is very porous and is used to adsorb impurities from water. Its use in aquar- iums typifies this behavior.) In a lab experiment, a student mixes a given amount of powdered charcoal into a series of acetic acid solutions. The acetic acid solutions have different initial concentrations. Some of the acid is ad- sorbed onto the charcoal. By taking aliquots after equilibrium is established, the student determines the change in acid concentration. Plot a Langmuir isotherm for the experimental data and determine the equilibrium constant for the adsorption. The experimental data are as follows: Original concentration (M) 0.7001 Change in concentration (M) 0.3694 0.1515 0.0437 0.0169 0.00665 0.00588 0.00553 0.00283 0.00153arrow_forward1-bromopropane reacts with sodium hydroxide solution to give propan-1-ol. The hydroxide ions replace the bromine in the organic molecule. This is a simple reaction involving a collision between the 1-bromopropane and the hydroxide ions: CH3CH2CH2Br + OH- → CH3CH2CH2OH + Br -What do you think the effect would be if you doubled the concentrations of both reactants? Explain your answer.arrow_forward
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- Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning