A 20-mL solution of 0.0659 M AgNO3 was titrated with 20 mL of 0.0509 M NaCl (Ksp = 1.8x10-10). Calculate the pAg of the analyte solution. Express your answer with 3 decimal places.
Q: Problem: The rate constant has been measured as a function of Temperature for the reaction AB. Using…
A:
Q: A 30-mL portion of a solution containing Ca²+ and Mg2+ was titrated with 28.19 mL of 0.207 M EDTA at…
A: Given that, In the first titration Volume of Ca-Mg solution = 30 mL Volume of EDTA used = 28.19 mL…
Q: Reaction D Reaction E Reaction F Reaction G Reaction H OH OH Br Br Br. Br Br. Br.
A:
Q: Predict the products for the following single and double displacement reactions, and write balanced…
A: A displacement reaction is the reaction in which an atom or a set of atoms is displaced by another…
Q: What is the results of mixing calcium nitrate with sodium carbonate? Group of answer choices A…
A:
Q: In optical analysis, what are the methods used to calculate the concentration of a solution from the…
A: Solution: Colorimetry is the method of calculating the concentration of a coloured compound present…
Q: At 1120 K, ∆G° = 47.1 kJ/mol for the reaction 3 A (g) + B (g) →2 C (g). If the partial pressures of…
A:
Q: Consider a body of water in equilibrium with solid calcium sulfate, CaSO4, for which Ksp = 3.0 *…
A:
Q: The limiting reactant will always have remains of unreacted materials left over once the reaction is…
A: The question is about the limiting agent of a reaction. One statement is given about the limiting…
Q: a. Write the symbol of the element with the largest atomic radius in Group 7A. b. Write the symbol…
A: NOTE:-As you posted multiple subparts in a question so we will answering first 3 subparts. a)As we…
Q: what
A:
Q: The half-life of a particular radioactive isotope X is 10.0 days. (1) Determine its decay constant.…
A: half life = 10.0 days.
Q: Using noble gas notation, depict reasonable electron configurations for the following element: The…
A: Given, Element = Amercium (Am) Write noble gas electronic configuration of Am? Aufbau principle…
Q: The n value is the principal quantum number, which for H and He is 1. For He, Z = 2 if no electron…
A:
Q: Arrange the following elements in order of increasing size. From smallest to largest Drag and drop…
A:
Q: Draw structural formulas for organic products A and B in the window below.
A:
Q: Consider the following voltaic cell at 298K. Select only the statements that are TRUE. Mg (s) I Mg2+…
A: In the cell, LHE is the anode where oxidation takes place and the right hand electrode is the…
Q: a 30.0mL sample of 0.200 M hypochlorous acid (HClO; Ka = 3.0 x 10-8) is titrated with 0.100 M KOH.…
A:
Q: Which of the following statements must be true for two pure chiral somers?
A:
Q: techniques, in electron paramagnetic resonance, the radiation frequency remains constant while the…
A:
Q: Be sure to answer all parts. Label each diagram as a strong electrolyte, weak electrolyte, or…
A: In first diagram upon very minute observation we found that 7 molecule only 1 molecule is…
Q: A student was able to detect a mas O2. Oxygen was present in excess yield of the reaction? O 50.0% O…
A:
Q: two representing L-alanine and two representing D-alanine. Which pair represents L-alanine? *H3N-…
A:
Q: Compute for the percent by mass of a 36 grams of Sodium chloride or salt dissolved in 100 grams of…
A: We need to find mass percent of sodium chloride.
Q: what are some real life examples of thermodynamic studies of Dissolution of Urea? How can this be…
A: Dissolution of Urea : When urea dissolves into the water then bonds between solids breaks and due to…
Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction free…
A: Given, MgCl2(s) + H2O(l) ----> MgO(s) + 2HCl(g) Species standard gibbs free energy (∆G°f)…
Q: Gaseous methane (CH4) reacts with gaseous oxygen gas (O₂) to produce gaseous carbon dioxide (CO₂)…
A:
Q: B Stress Add Ag Add AgBr Increase Temperature Decrease Pressure AgBr(s) (> Ag (ng) Equilibrium shift…
A: When we apply chnges to the reaction in equilibrium then the equilibrium will shift in such a way to…
Q: How much energy (in J) is required to warm 25.0 grams of water from 0.0°C to 8.1°C? For comparison,…
A: As there is no phase change occurs, amount of energy is equal to the product of mass, specific heat…
Q: For the reaction: NO2(g) → 1/2O2(g) + NO (g) The following data were obtained: [NO₂] (M) Natural Log…
A: A reaction is Zero order when a plot of [NO2] versus time(s) graph is a perfectly straight line with…
Q: All of the following pairs of ions are isoelectronic except which one? A) Al³+ and N³- B) Fe²+ and…
A: •ISOELECTRONIC SPECIES:-elemenst or ion having same number of electron are called Isoelectronic…
Q: Which one of the following particles is emitted when 22 Na decays into 20 Mg? n OP ОВ O a
A:
Q: A total of 5 mL of blood samples were treated with trichloroacetic acid to precipitate proteins.…
A: Solution: In this question we have to calculate the Pb concentration in ppm.
Q: What product(s) results from this reaction? Hint: pay atteneton to reagents! (A) (B) (C) (D) 1.…
A:
Q: 2 3 A. Draw a mechanism for the conversion of 1 to 2. Note the BOC group is just a large blocking…
A: Methylphenidate is substituted with BOC group. It prevents substituted nitrogen to reacted with…
Q: Draw the possible set of slip system in FCC unit cell. Please answer in detail.
A: In FCC unit cell six atoms are lie in center of faces and eight atoms are lied at corners of unit…
Q: 4. The vapor pressure of ethanol is 400 mmHg at 63.5 °C. Its molar heat of vaporization is 41.7…
A:
Q: what is the relationship between absorbance and transmittance? kindly explain it briefly
A: Incident light can be defined as the light that strikes on a solution.
Q: The rate constant k was measured at different temperatures. A copy of the spread sheet table used to…
A: Arrhenius equation relates rate constant to absolute temperature as shown below: k = Ae-Ea/RT Taking…
Q: Which one of the following cations is found in the unknown solution? Solubility Table
A:
Q: How does the 1966 Fahrenheit 451 move portrayed censorship? Provide details and examples
A: Adaptation of the Ray Bradbury novel about future society that banned all books. Fahrenheit 451…
Q: CI J гон A Br NO₂
A: reactions of substituted benzenes
Q: OA. OB. OC. OD. E. Compound Compound Compound Compound B is a ketone G is an Aldehyde H is a…
A:
Q: Calculate the heat lost by the liquid water (in kJ).
A: The equation of heat is as follows : q = m × c × ∆T…
Q: C9H9N IR (cm-1): 1H NMR (5): 13C NMR (5): 3050, 2950, 2240, 1630 7.5 (2H, d), 7.1 (2H, d), 2.3 (2H,…
A:
Q: 36 Give the correct IUPAC names of the following compounds: please explain one of example with solve…
A: Using the rules of nomenclature of organic compounds, the correct naming of the given molecules can…
Q: When a metal was exposed to photons at a frequency of 1.10 x 1015 s-, electrons were emitted with a…
A:
Q: Part A 1. Determine the absolute configuration (R or S) of the stereogenic centre in compounds (1) &…
A: For the absolute configuration of the molecules , we use the following rules ; For fisher…
Q: Part A 65 g of Na,SO, in 265 mL of Na SO, solution Give your answer to two significant figures.…
A: From given data we can easily find molarity as:
Q: Consider the reaction: N₂ (g) + - 3H₂(g) 2NH₂ (g) Suppose that a particular moment during the…
A: We know that rate of a reaction can be expressed as nA ------> mB (-1/n)d[A]/dt = 1/m d[B]/dt…
Step by step
Solved in 5 steps
- A 0.9092g sample of wheat flour was analyzed by Kjeldahl method. The ammonia formed was distilled into 50.00 mL of 0.05063 M HCl; a 7.46 mL back titration with 0.04917 M NaOH was required. Calculate the % protein in the flour. Input the value only. Express in 2 SF.You want to determine the concentration of NaCl in a water. In preliminary analysis, it appears to be saline water with a NaCl content of approximately 4%. Should you dilute the sample if your titrant has a concentration of 0.1 M and you want to spend 25 mL of sample?10-27. A 10.231-g sample of window cleaner containing ammonia was diluted with 39.466 g of water. Then 4.373 g of solution were titrated with 14.22 mL of 0.106 3 M HCl to reach a bromocresol green end point. (a) What fraction of the 10.231-g sample of window cleaner is contained in the 4.373 g that were analyzed? (b) How many grams of NH3 (FM 17.031) were in the 4.373-g sample? (c) Find the weight percent of NH3 in the cleaner.
- Bay Water Titration The concentration of Cl- in ocean water is about 500-600 mM. The baywater is diluted by a factor of 12.5 using a 20.00 mL volumetric pipet and a 250 mL volumetric flask. Using a 15.00 mL volumetric pipet, 15.00 mL is transferred into three clean Erlenmeyer flasks. 10 mL of 1% dextrin solution, 20 mL of de-ionized water, and 3-4 drops of indicator are added and titrated each with the AgNO3 solution. From the procedure, find: Dilution factor Volume of diluted bay water Then calculate: The [Cl-] of diluted bay water The [Cl-] of bay water Consider this information: [AgNO3] = 0.04043177 trial # Veq 1 13.91 2 13.73 3 13.9 4 13.86 5 13.87 6 13.84 average 13.85167 [Cl-]Bay = ([AgNO3](Veq(ave))/Vdil bay water pipeted) (Vflask/Vbay water)Example You determine the acetic acid content in vinegar by titrating with a standard (known concentration) solution of NaOH to a phenolphthalein endpoint. 5.023± 0.003 g sample of vinegar is weighed. The NaOH must be standardized by KHP and 3 such titrations gave molarities of 0.1167, 0.1163 and 0.1164 M. A volume of 36.78 ± 0.03mL NaOH is used to titrate the sample. What is the percent acetic acid in the vinegar and what is the overall uncertainty?Answer: 5.12% ± 0.01%2+ as (6) A sample of an ore was analyzed for Cu* follows. A 1.25 g sample of the ore was dissolved in acid and diluted to volume in a 250 mL volumetric flask. A 20 mL portion of the resulting solution was transferred by pipet to a 50 ml volumetric flask and diluted to volume. An analysis showed that the concentration of 2+ Cu* in the final solution was 4.62 ppm. What is the weight percent of Cu in the original ore?
- 1. A sample of pure sodium oxalate, Na2C2O4 , weighing 0.2856 g is dissolved in water, sulfuric acid is added, and the solution titrated at 70°C , requiring 45.12 mL of a KMNO4 solution. The end point is overrun and back-titration is carried out with 1.74 mL of a 0.1032 N solution of oxalic acid. Calculate the normality of the KMNO4 solution. Hint: A redox reaction is involed between oxalate and permanganate. Look at the changes in oxidation state by determining the balanced redox reaction: 5C20,2 + + 2MN2+ 2 Mn04 + 10H* → 10CO2 + 8H20Direct titration: 10.90 ± 0.02 mL of an unknown KHP solution required 11.72 ± 0.02 mL of 0.1090 ± 0.0006 M NaOH to reach the end point. What is the concentration of KHP in the unknown solution reported with absolute uncertainty? If the unknown solution was prepared by dissolving 5.128 g of the unknown KHP (204.22 g/mol) in 100.00 mL of water, what is the weight percent of KHP in the sample?A student performed a titration to determine the exact concentration of NaOH(aq). The titration was performed against a standard 0.1000 M HCl(aq) solution. Phenolphthalein indicator was used. The following end-point volumes were recorded by the student in units mL: Trial Number Volume 1 25.06 2 25.15 3 25.02 4 25.17 5 25.07 Calculate the 95% confidence limit. Assume that there is no outlier. Provide your answer to the correct number of decimal places, without units, and without the ± sign. Use the T-table shown below.
- Molarity of Na2S2O3 (stock solution). 0.100 M Volume of diluted bleach titrated (taken from the volumetric flask). 10ml Initial Burette Reading. 14.80 Final Burette Reading 25.60 Volume of Na2S2O3 used in the titration (mL). 10.80 Moles of Na2S2O3 used in the titration. 1.71 Moles of S2O3–2 used. 1.66 Moles of I2 initially present in titration mixture 0.83 Moles of NaOCl in the diluted bleach titrated. 0.415 Volume of bleach titrated. 1ml Mass of commercial bleaching solution titrated ?Molarity of Na2S2O3 (stock solution). 0.100 M Volume of diluted bleach titrated (taken from the volumetric flask). 10ml Initial Burette Reading. 14.80 Final Burette Reading 25.60 Volume of Na2S2O3 used in the titration (mL). 10.80 Moles of Na2S2O3 used in the titration. 1.71 Moles of S2O3–2 used. 1.66 Moles of I2 initially present in titration mixture 0.83 Moles of NaOCl in the diluted bleach titrated. 0.415 Moles of OCl– in the diluted bleach titrated. ?Molarity of Na2S2O3 (stock solution). 0.100 M Volume of diluted bleach titrated (taken from the volumetric flask). 10ml Initial Burette Reading. 14.80 Final Burette Reading 25.60 Volume of Na2S2O3 used in the titration (mL). 10.80 Moles of Na2S2O3 used in the titration. 1.71 Moles of S2O3–2 used. 1.66 Moles of I2 initially present in titration mixture 0.83 Moles of NaOCl in the diluted bleach titrated. 0.415 Volume of bleach titrated. 1ml Mass of NaOCl in commercial bleach titrated. ?