what is the concentration of the unknown sample using serial diluitions: 0.05M 1.7472nm, 0.025M 0.8569nm, 0.0125M 0.4167nm, 0.00625M 0.1958nm the epsilon value is 0.0101 and l is 1 cm
Q: Which of the molecules listed below is most likely to have the lowest melting point? Isobutyramide,…
A: Melting point is defined as the temperature at which a solid starts melting and becomes liquid.it…
Q: Calculate the volume in liters of a 0.055 mM barium chlorate solution that contains 125. mmol of…
A:
Q: Convert the molecule to an alcohol. I Br
A: The given compound is 1-bromo-4-iodopentane . We have to convert it into alcohol.
Q: 5) Complete the following: HO type: type: type: MeO MeO MeO OH type: type: type: MeO MeO MeO OTS H
A: Given is series of organic reactions. A reaction is a process by which a given reactant is…
Q: Show how you could convert 1-propanol into the corresponding aldehyde and carboxylic acid.
A: 1-Propanol is a primary alcohol. It can be converted into corresponding aldehyde by mild oxidizing…
Q: What buffer ratio of hydrofluoric acid and sodium fluoride would be required to attain a…
A: Given:pH = 7.4Calculate the ratio .A solution that resists changes in its level when an acid or…
Q: ) Provide a complete step by step mechanism for the following reactions. hortorto rengving + HCC13…
A:
Q: Calculate the heat, in kJ, that would be involved in condensing 9.6 g of CH3OH. (AHvap = 38.0…
A: The energy required to transfer a given amount of liquid into a gaseous state is known as the heat…
Q: Provide the correct IUPAC name for the compound shown here. CX H3C .F F
A: The IUPAC rules used for nomenclature of cyclic compounds are shown as follows:When writing the name…
Q: H3C ZI О CH₂
A: Hybridization is a process that involves the mixing of atomic orbitals with each other to form…
Q: Does 2,3-dichlorobutane have optical activity?(1). No.(2). Only in solution.(3). Yes, in any state…
A: The objective of the question is to determine whether 2,3-dichlorobutane has optical activity.…
Q: ↑ ENERGY -A- B Submit Answer ن D E = n: infinity n = 3 n = 2 n = 1 Match each of the responses below…
A: When the electron jumps from lower energy to the higher energy, energy is absorbed by the electron.…
Q: When a metal was exposed to photons at a frequency of 1.43 x 10¹5 s-¹, electrons were emitted with a…
A: Answer:When photons are bombarded on the metal surface they collide with electrons and if that…
Q: Which of the statements below correctly describes the chair conformations of…
A: An axial chair conformation is less stable than corresponding equatorial conformation. This is due…
Q: Which is the product of the following mini-synthesis sequence? A Y O Structure A Structure B O…
A: We have been given a reaction sequence which we have to complete.
Q: Adding one proton to the nucleus of an atom does not change either its atomic number or its atomic…
A: Atomic mass is given by Sum of number of protons + neutrons present in the nucleus.Atomic number is…
Q: With respect to substituent Me, determine whether substituent Br is cis or trans. 1. Choose the…
A: The two groups are cis to each other if they have the same stereochemistry, either both above or…
Q: Identify the hybridization of each of the carbon atoms in the following molecule. Н. H H H 20 C 3 H…
A: HybridizationThe concept of mixing two atomic orbitals to give rise to a new type of hybridized…
Q: This is a Bronsted-Lowry acid-base reaction. Draw structures for all the products, showing any…
A: Given that, the reaction is:
Q: The following absorbance values for four solutions with known MnO4 concentrations were measured…
A: A spectrophotometer is a device that is used to measure the intensity of the light that passes…
Q: How many electrons are in bonding orbitals in H2 and He2?
A: Given H2 and He2 molecules.We need to write the number of electrons in bonding orbitals in H2 and…
Q: How is the vapor pressure of a substance related to the intermolecular forces present within the…
A: Vapour pressure: The pressure exhibited by vapour over a liquid surface is known as its vapour…
Q: Give the compounds their correct IUPAC names ہو لام الا B ra tx E F H 362 6F FM K L
A: We first select the longest carbon chain as parent chain, then we number this chain starting from…
Q: The data below show the concentration of cyclobutane (C4H8) versus time for the following reaction:…
A: Given is data of concentration vs time of .To find the rate of the reaction when the concentration…
Q: NBS ROOR, CC14 heat ► give all possible products
A: Since you have asked multiple questions, we will solve first question for you.We know that NBS adds…
Q: Le-19 has an atomic mass of 19.0134 u. Le-17 has an atomic mass of 17.4629 u, and Le-15 has an…
A: The average atomic mass of an element with three isotopes is given by A = atomic mass X = percent…
Q: Thin layer chromatography : When placed on a plate, the silica gel has a polar surface. Explain…
A: The objective of the question is to understand why silica gel has a polar surface when used in thin…
Q: Calculate the formal charge for each atom and find the hybridization of each atom. H₂C ZI H -CH3
A: Hybridization is a process that involves the mixing of atomic orbitals with each other to form…
Q: Steps (5 items) (Drag and drop into the appropriate area) No more items Correct Order 1 2 3 4 5…
A: Given steps are with respect to the mass spectrum analysis in the mass spectroscopy technique.
Q: 2. (a) A voltaic cell is constructed as follows: Zn |Zn²+| H|H₂ The half-cell reactions are: Zn --→…
A:
Q: What is the name of the alkali metal that is in period 2? fill in the blank 1What is the name of the…
A: The objective of the question is to identify the names of specific elements in the periodic table…
Q: 4) The following enone, 3-methylcyclopent-2-enone, was prepared through an intramolecular aldol…
A:
Q: Identify the equilibrium below that shows the two chair conformations of the following compou O O O…
A: There is a di-substituted cyclohexane. We need to find the two chair conformations of it.
Q: Shown below is the major resonance structure for a molecule. Draw the second best resonance…
A: Concept of Resonance; When all the properties of a molecule cannot be explained by a single…
Q: A 1.75 mole sample of argon is introduced into a 10.0 L container at a temperature of 15 °C. What is…
A:
Q: Determine the standard enthalpy change for the following reaction: 5PbO₂ (s) + 4P (s,…
A: Ho(PbO2) = -277.4 kJ/molHo(Pb) = 0 kJ/molHo(P4O10) = -2984.0 kJ/molHo(P) = 0 kJ/mol
Q: In a paragraph, more than one sentence please write the objective of the experiment in the image…
A: In the given question we have to write the objective of the experiment.The objective of an…
Q: Using the data collected in Table 2, construct a plot in Excel according to the directions in your…
A: The rate of a reaction or a process can be determined by plotting a graph of concentration or amount…
Q: Determine the molecular formula based on the information provided. A ketone with M+ = 192 that has 4…
A: The question is based on the concept of organic spectroscopy. We need to analyse the spectral data…
Q: ou are working with a solution that has [H*] = 1.0 x 10-⁹. a. Write this out as a decimal: b. What…
A: pH is defined as the negative logarithm of H+ ion concentration. Hence the meaning of the name pH is…
Q: 3. A condensed structures of a carboxylic acid and an aldehyde are shown below. Give the full-planar…
A: The objective of the question is to show the full planar and bond-line representations of the given…
Q: Select all functional groups that are present in the molecule show H3CO. carboxylic acid aldehyde…
A: A functional group in organic chemistry refers to a specific arrangement of atoms within a molecule…
Q: By which factor will the 1 M buffer sodium acetate (pK₂ = 4.75) increase the amount of acid required…
A: In the given question we have to calculate the factor by which the amount of acid should be…
Q: Give the major products for the reaction. Cl₂ (low conc.)
A: We have to say the major product = Penta-1,3-diene + Cl2 (low concentration) When 1,3-pentadiene…
Q: An electrical heater adds 23.7 kJ of heat to a constant - volume calorimeter. The temperature of the…
A: The objective of the question is to calculate the molar energy of combustion of methanol using the…
Q: Select the correct PEC (potential Energy vs Configurations) diagram P(s) + 6 H₂ (g)--> 4 PH₂(g) E₂ A…
A: When the average energy of product species is less than average energy of reactant species, energy…
Q: We received 15000 Ci of 28Mg, present as Mg(NO3)2 and want to dissolve is in 10 mL water at pH 8.…
A: Given:The unstable nuclides can be converted into stable nuclides by emitting radiation. Curie (Ci)…
Q: Draw the major product of the following Diels-Alder reaction. Use the Bicyclic ring tool and guide…
A:
Q: 2. What are the general skeletal (line -bond) structures for 1 - chloropentane, 2-brombutane,…
A: bond line structural formula is another way of structural representation of organic compounds. Here,…
Q: The compound shown has the IUPAC name of CH-CHECH₂CHCHCH₂CH₂ CH₂-CHCH3
A: The given compound is a hydrocarbon, alkane. The IUPAC name of an alkane can be written based on the…
Unlock instant AI solutions
Tap the button
to generate a solution
Click the button to generate
a solution
- An exposure assessment study was conducted in a nail salon. Previous studies have indicated that airborne concentrations of methyl methacrylate are approximately 1 ppm. If the LOD of the analytical method is 0.25 ug and sampling should be conducted at a flowrate of 0.01 LPM, what is the minimum amount of time the sample should be collected to achieve a detectable concentration? Note: Methyl Methacrylate MW=100.1 g/mol A. 11.2 Minutes B. 2.7 Minutes C. 8.5 Minutes D. 6.1 MinutesChemistry 0.1237 (±0.0001) g of sodium carbonate (Na2CO3) required 22.46 (±0.02) cm3 of aqueous HCl for complete neutralisation. Determine the concentration of the HCl in mol dm–3 together with its uncertainty in mol dm–3 to an appropriate number of digits. You may assume the error in the molar mass of Na2CO3 is negligible.You are trying to come up with a drug to inhibit the activity of an enzyme thought to have a role in liver disease. In the laboratory the enzyme was shown to have a Km of 1.0 x 10-6 M and Vmax of 0.1 micromoles/min.mg measured at room temperature. You developed an uncompetitive inhibitor. In the presence of 5.0 x 10-5 M inhibitor, the apparent Vmax was determined to be 0.02 micromoles/min.mg. What is the Ki of the inhibitor?
- Can you use the craap method to determine if the article by caltech titled Beirut explosion: TNT equivalence from the fireball evolution in the first 170 milliseconds is credible?explain why or why not?Given the Ksp for Ag2CrO4 is equal to 1.20 x 10-12, calculate the percent error in your experimentally determined value for average Ksp (this will be an extremely large percentage – think about why).An analyst conducted suction filtration for a certain 3.0 gram of solid. After filtration, the weight of the collected powder was 2.8 grams. Calculate the recovery efficiency of the sample.
- What is instrumental analysis in chemistry?LIMIT TEST (IMPURITIES - BIOLOGICAL) Instructions: Note the color change of each of the samples by writing blue or pink accordingly. Then give inference whether the sample is contaminated or not contaminated upon observation. Answer the highlighted numbers. BLANK (Sterile distilled water) Reference Sugar Solution Sample A Sample B REPLICATE 1 BLUE BLUE PINK PINK REPLICATE 2 BLUE PINK BLUE PINK REPLICATE 3 BLUE PINK PINK PINK INFERENCE NOT CONTAMINATED CONTAMINATED 1 2 1. 2. 3. Which of the two samples is relatively clean of biological impurities? 4. Given the result in limit test as an analyst, what will be the final conclusion to this? Write whether rejected or accepted for each sample. (see attached photo)A standard curve for glucose analysis was prepared.The slope (m) was found to be 1.341 while the y-intercept (b) was -0.333. Calculate the concentration (x) of glucose having an absorbance (y) of 0.151. 0.067 0.361 0.858 0.136
- Strontium phosphate, Sr3(PO4)2Sr3(PO4)2, dissociates when placed in water. This compound has a solubility of 0.112 mg/L in water at 20 °C. Calculate the Ksp of Sr3(PO4)2Sr3(PO4)2. Please write your answer using scientific notation according to the following format: 0.0010 would be writen as 1.0*10^-3.Please answer questions 3a and 3b. Questions are provided in the attached image. Thank you.Give a detailed description of how these both analytical separation protocol will be employed to recover river bodies from heavy metals and particulate matter. I. Centrifugation II. Chemical precipitation