A Chromatographic quantitation of Methylene blue have the following data. Calculate the concentration in mM of Methylene blue in the Sample. (answer must have 3 significant figures) SPL 1 STD 1 STD 2 STD 3 Your answer Run Sample 5 mM 10 mM 20 mM Peak Ht 14.213 12.33 19.45 25.97 Peak Area 35,041 31,397 62,805 125,510
Q: Q6. How many protons, neutrons, and electrons respectively are A. 197, 79, 118 C. 79, 118, 118 197…
A: Atomic number = 79 Mass number = 197 Therefore , number of protons = 79
Q: Unlike animal hormones, plant hormones can have multiple functions depending on which of the…
A:
Q: As you increase the temperature of a gas what will not increase? volume the gas constant (R) average…
A: Answer : The gas constant (R). The gas constant (R) is a constant value and it doesn't change with…
Q: Compound A OH OH NH₂ Compound B OH H₂N OH OH O=S=O -O Na Differentiating Chemical test 1 3 5…
A: The following chemical test will distinguish between following compound.
Q: Question 14 A 0.640-kg sample of methylene bromide has a density of 1.38 g/cm ³. Calculate its…
A: We know that density is the ratio of mass to volume of a sample. Density (d) = Mass (m)/Volume (v)
Q: Select the product of the reaction sequence below. A B. Br Br HNO₂ Br₂ H₂ H₂SO4 FeBr, Pd/C NO₂ NO₂…
A: Benzene under go aromatic electrophilic substitution reactions.
Q: The solubility product for Cu(OH)₂(s) is 1.6x10-19. Calculate the value of go for the following…
A:
Q: 1. Determine the number of carbon atoms in the longest chain of each of the following, and name the…
A: According to guidelines we are supposed to answer only one question please ask rest of the question…
Q: Provide proper IUPAC name for the following compound::
A: In this question, we have to give the IUPAC name of the given compound.
Q: A chemist fills a reaction vessel with 0.328 g silver chromate (Ag₂ CrO4) solid, 0.724 M silver…
A:
Q: (5) Consider the reaction: 2H2(g) + O2(g) → 2H₂O(1) The heat produced (KJ) to produce 1.0 mole of…
A: Mole is a standard unit for measuring large quantities of very small entities such as molecules,…
Q: Briefly outline the experimental procedure used in obtaining the data required for External-Standard…
A: A question based on tools in analytical chemistry that is to be accomplished.
Q: A student is provided with a 4.0 M stock solution of hydrochloric acid (HCl). They take 8.00 mL of…
A:
Q: Ammonium oxalate dissociates when it dissolves in water. If the concentration of the oxalate…
A: Here we have to calculate the concentration of ammonium oxalate if the concentration of oxalate ion…
Q: B. C10H1604 compound? A. Mixing NaCl with H₂O C. Wax burning Q12. Which of the following does not…
A: Question no. 12 as specified.
Q: . When a lead storage is recharged by a current of 10 A for 15 mins, what mass of is consumed?…
A: Given -> Current (i) = 10 ampere Time(t) = 15 min = 15 × 60 = 900 seconds (1 minute = 60…
Q: Draw the structure(s) of the product(s) of the reactions below. Be sure to indicate any relevant…
A: In this question, given that, Reactant : Diethyl malonate and Reagent : Strong base ( EtONa ) &…
Q: b F2 (g) → 2 F(g) Standard entropy for some substance given below. Sᵒ, J/K mol 202.8 158.754…
A:
Q: An unknown compound gives an accurate mass spectrum of m/2 72.0283. What is the most likely…
A: Given the m/z of the unknown compound = 72.0283 u
Q: if ΔG°= -96.4 kJ•mol-1, what is the value of K at 298 K ? provides information about the…
A: Note-Since the given question is a multipart question hence, I solved first three question according…
Q: Draw the structure(s) of the product(s) of the reactions below. Be sure to indicate any relevant…
A: we have to draw the product(s) for the given reaction
Q: Which of the following is NOT a characteristic of viruses? they develop within the cell they are…
A: We have to tell among the given options which one is not a characteristic of virus. The given…
Q: H Br NacN ethanol ? + NaN, ethanol H₂C-1 + H₂CH₂ CH₂ + NaCN CH₂-Br ? acetone ethanal ? ?
A: The all given reactions are example of the bimolecular nucleophilic substitution reaction (SN2) .…
Q: Question 2 Consider reaction A) Os (s) →20s (g) →OsO4(s) versus reaction B) Os (s) →20s (g) →…
A:
Q: Why is ethyl alcohol soluble in water?
A:
Q: A.1.36 × 10% B. 1.36 x 10 Q3. Precision refers to how a measured number is close to A. Other…
A: Precision is a method to check the validity of the measured values of an experiment.
Q: For the aqueous [Fe(CN)6] complex K₁=1.00 × 10³5 at 25 °C. Suppose equal volumes of 0.0078M Fe(NO3),…
A:
Q: Can you show the mechanism and the products for those problems especially the ones that I put circle…
A: Benzene shows aromatic electrophilic substitution reactions because it does not loose the…
Q: 3. The equivalence point of the ethanoic acid titration occurs when pH-8.7. The ionic product of…
A: Given: The pH at the equivalence point = 8.7 Kw = 1.0 × 10-14 mol2 dm-6 We have to calculate the…
Q: Oxygen molecules dissociate to form oxygen atoms. spontaneous nonspontaneous A tray of water is…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Sodium phosphate dissociates when it dissolves in water. Na3PO4 (aq) --> 3 Na+ (aq) + PO43- (aq)…
A: Here we are required to find the concentration of sodium ion
Q: What is the major product of the reaction below under the provided thermodynamic conditions? HBr (1…
A: Given reaction is : What is the major product of the reaction under thermodynamic conditions ?…
Q: Predict the major product of the following reaction. NH₂ 1a. OLI O 1b. MeCl 1a. CH3I (excess) K₂CO3…
A: -> Nucleophile can give Michael addition reaction to the alpha,beta - unsaturated carbonyl…
Q: Outline the synthetic steps necessary to carry out the conversion below. You may use any organic or…
A:
Q: calculate the volume in Liters of H₂ gas produced at 27 degrees Celsius and 744 torr from the…
A:
Q: □ H₂O(1) OK*(aq) ClO3 (aq) Aluminium sulfate is used as a flocculating agent in the treatment of…
A: Here we have determine the concentration of aluminium ion and sulphate ion if the concentration of…
Q: Q8. Which combination of formula/name is incorrect A. FeO/iron (II) oxide CN₂O/ dinitrogen B. CrO3/…
A:
Q: The saturated calomel electrode, abbreviated SCE, is often used as a reference electrode in making…
A: #(e): Given the standard potential of the saturated calomel electrode(SCE), Eo = 0.242 V
Q: If 10% of a radioactive substance decomposes in 200 years, what percentage will be present at the…
A:
Q: . For the reaction N +0. → 2NO 2(g) 2(g) needed to generate 40 moles of NO? 0 ‚ÄHº : = 180.5 kJ, how…
A:
Q: [Ag(NH3)₂] complex K₁=1.12 × 10² at 25 °C. Suppose equal volumes of 0.0034 M AgNO3 solution and…
A:
Q: 18.970 g of a volatile solute is dissolved in 445.0 g of water. This solute also does not react with…
A:
Q: Predict the products of the following reactions. Include stereochemistry when necessary. For…
A:
Q: Provide proper IUPAC name for the following compound: H₂C H CFC X H C=O
A: An acyl chloride or acid chloride is an organic compound having functional group -COCl. In IUPAC…
Q: Number the carbon atoms in the monosaccharides shown and draw structures to show how a (16)…
A: The numbering of carbon is done from the carbon atom bonded to Oxygen to form the longest 6 carbon…
Q: Consider the reaction PC15(g) PCl3(g) + Cl2(g). Calculate the equilibrium constant (Kp) for the…
A:
Q: Why does boric acid function as such a very weak monobasic acid?
A:
Q: Glucose-1-phosphate is converted to Glucose-6 phosphate by an enzyme. The equilibrium constant in…
A: The equilibrium reaction is: Glucose-1-PO42- → Glucose-6-PO42- ; K' = 19
Q: What is the product of this reaction sequence? В. OH OH 1. НО 2. LIAIH 3. H2O, H, heat С. D. OH, H*…
A:
Q: Question 1 Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as…
A: Given, Cu2S(s) + O2(g) ----> 2Cu(s) + SO2(g) mass of copper (I) sulfide (Cu2S) reacts = 3 kg =…
Step by step
Solved in 2 steps with 1 images
- Given below is a diagram of separation of two components of a mixture in a chromatographic column. From the diagram, which component has lesser affinity to the stationary phase? a X b Z c F d DChromatography is based on molecules differing physical properties as a means of separating compound mixtures. Group of answer choices True FalseWhat is a 99% confidence interval uncertainty of the slope when we are given a trendline with a slope of 42.211 and an R² value of 0.9991 for a set of 145 data points?
- Given below is a diagram of separation of two components of a mixture in a chromatographic column. From the diagram, which component has lesser affinity to the stationary phase? Component D Component F Component Z Component X Ox OZ OF DQ1: The following are relative peak areas for chromatograms of standard solutions of methyl vinyl ketone (MVK) MVK concentration mmol/L 0.5 Relative peak area 3.76 1.5 9.16 2.5 15.03 3.5 20.42 4.5 25.33 5.5 31.97 A sample containing MVK yielded relative peak area of 21.3. Calculate the concentration of MVK in the sample.(use excel)What is the absolute uncertainty and relative uncertainty of the molarity of the solution? M = = 0.078376462 = 0.078 M Pb2+
- The spectroscopic data in the table is generated with five solutions of known concentration. Concentration (M) 0.0133 m= 0.0266 0.0532 0.106 0.213 Absorbance 0.1271 What is the intercept of the linear regression line? 0.08531 0.5388 1.069 Use a spreadsheet program, such as Microsoft Excel, to graph the data points and determine the equation of the best-fit line. 1.954 What is the slope of the linear regression line formed by these points? M-1-3 A 0.3202 (±0.0001) g sample of a pure monoprotic acid required 20.04 (±0.02) cm° of 0.1005 (±0.0005) mol dm neutralisation. Find the molar mass of the acid in g mol together with its uncertainty also in g mol, with an appropriate number of digits. NaOH for -1 Select one: a. 1.59 x 102+ 0.2 g mol b. 1.60 x 10 + 0.03 g mol C. 1.590 x 102 + 0.03 g mol d. 1.590 x 10- + 0.2 g mol 1.60 x 10-+0.2 g mol е. Clear my choiceEXAMPLE Significant Figures in Laboratory Work You prepared a 0.250 M NH, solution by diluting 8.46 (0.04) mL of 28.0 (10.5) wt% NH, [density=0.899 (+0.003) g/mL] up to 500.0 (+0.2) mL. Find the uncertainty in 0.250 M. The molecular mass of NH3, 17.031 g/mol, has negligible uncertainty relative to other uncertainties in this problem.
- Can paper chromatography be used to separate and identify very volatile substances? Why? Please explain comprehensively.Based on the given data, what is the λmax of cobalt? 0.1M Cobalt 300 0.451 325 0.467 350 0.584 375 0.629 400 0.694 425 0.673 450 0.541 475 0.433 500 0.423 525 0.327 550 0.264 575 0.245 600 0.233 625 0.211 650 0.189 675 0.187 700 0.165Gas chromatography cannot analyze mixtures due to the sensitivity of the instrument. True False