2. Predict whether the calculated molarity of the NaOH solution will be too high or too low if a student 'overshoots' the end point of titration. Give the reason to your answer. Scanned with Cam
Q: Time (s) [N205] (M) 0.0365 600 0.0274 2 N205 (aq) → 4 NO2 (aq) + 02(g) 1200 0.0206 1800 0.0157 2400…
A: Recall the given reaction, 2 N2O5 aq → 4 NO2 aq + O2 gThis is a first…
Q: TEDE 3028 2845 289T 1603 1516 1427. 1298 69TT 1028 844 773 HAVENUMBERS ees2 eeez
A: IR spectra deals results from the interaction of infrared radiation with matter by absorption. IR…
Q: Use the data given here to calculate the values of AGn at 25 'C for the reaction described by the…
A: Given: ∆GfoA=387.7 kJ/mol∆GfoB=619.1 kJ/mol∆GfoC=402.0 kJ/mol
Q: CH3
A: In presence of KMnO4 ,the alpha -H containing benzene convert to acid ,but here is present 3 methyl…
Q: Arrange in order of increasing acidity. Explain. Но. -CI NH HO Но НО но НО A C D B
A: In this question, we will arranged all the phenolic derivative compound in their increasing order of…
Q: 3 show how to synthesize the following compound using only cyclohexene and bromoalkanes of 3 or…
A: Let us form the product using the provided reagents.
Q: Analyze the given benzene ring structure and choose the correct IUPAC name of the structure.…
A:
Q: LeChâtlier's Principle Consider the following equilibrium process: CO,2 (ag) + H20 y ++ HCO3 (aq) +…
A: Given reaction is : CO32- (aq) + H2O (l) <----------> HCO3- (aq) + OH- (aq) , ΔH = + 235.7 KJ…
Q: 7. In polysaccharides, monosaccharaides are joined by_ B. Glycosidic bond 8. Which of the following…
A: Reducing sugar is any sugar that is capable of acting as a reducing agent There are various sugar…
Q: Mercury-catalyzed hydration of internal alkynes produces a ketone. True/False
A: When internal alkyne is treated with mercury in presence of acid so found the ketone that's why the…
Q: What is the product of the following reaction? a. an alkyl benzene b. an adehyde c. a carboxylic…
A: The product of the following reaction = ?
Q: I. Identify the compounds (reactants or products) corresponding to each letter. If there are several…
A:
Q: Filling the Blanks. Fill in the blanks with the correct word/words to complete the given statement.…
A: 1) Carbohydrates provide energy to the body, particularly through glucose, a simple sugar that is a…
Q: A reaction mixture initially contains 2.1 M O2. Determine the equilibrium concentration of O, if K…
A: Given: Initial concentration of O2 = 2.1 M K = 2.2
Q: OH CH2 Hg C A, B >
A: The addition of HBr to alkene then hydolysis give alcohol.
Q: NaOCH2CH3 LOCH2CH3 H3CH2CO
A: This reaction occur via intramolecular cleasion condensation reaction pathway.
Q: A 0-3500g sample of Pmperse kI s treatedf with Or19428 of pure Kz Croy to expel att ef the diberatet…
A: Here we have to determine the percentage of purity of KI present in an impure sample KI using…
Q: How can the different conversion factor of mole concepts help you solve problems related to mole…
A: We have a major relation in mole concept which tells everything in this concept, 1mol of substance =…
Q: Write the half-cell equations and cell reaction equation for the cell representation shown below and…
A: Here we have to write the cell reaction at each half electrodes and net cell reaction and to draw…
Q: Synthesize H3C from ethyne.
A: Detail mechanistic pathway is given below by which we can carry out the following synthesis reaction
Q: Hi soon, I will have a test in physical chemistry and we are allowed to have 2 A4 paper front and…
A: First Law : It states that heat is a form of energy, and thermodynamic processes are therefore…
Q: 2) When a certain freon used in refrigeration was expanded adiabatically from an initial pressure of…
A: The explanation nedd hand written,not possible in type format,as some symbol not available. I think…
Q: How could following crossed-aldol reaction be performed to obtain the product selectively? ОН H.…
A: In cross aldol condensation reaction two different aldehyde or ketone are treated with base to form…
Q: 72. Water reacts with sulfur trioxide to produce sulfuric acid, as shown here. In this reaction, how…
A:
Q: dy Q1. In a niaction to nuake nuanganise From manganess oxide, the Follocwing results whene…
A: Given that the reaction 1 mole of MnO2 GIVES 1mole of Mn and 1mole of O
Q: CHs Hlg (OAC)z H2 O 2. Na BHf
A: Detail mechanistic pathway is given below to find out the product . Here Markovnikov's water…
Q: I. Identify the compounds (reactants or products) corresponding to each letter. If there are several…
A:
Q: Using n = MV, calculate the mass required to prepare 2.5 L of 1.0 M NaOH solution. Given the MM for…
A:
Q: At 580 nm, the wavelength of maximum absorption, the complex Fe(SCN)2+ has a molar absorptivity of…
A:
Q: CI uv dt heat
A:
Q: HO. + H NOs / H2 S04 ? ->
A: When benzoic acid reacts with concentrated nitric and sulphuric acid, it forms m-nitrobenzoic acid…
Q: Photo is only attached as reference.- What does the mass of the reactants and products tell us about…
A:
Q: What are the different shampoo ingredients and its desciption? you may also cite an example of it.
A:
Q: Which of the following reagent best accomplish this transformation below? Which of the following…
A:
Q: 6) Evaluate (dS/aV)T for a van der Waals gas. For an isothermal expansion, will AS be greater for an…
A:
Q: 3. What happens when you treat unknown molecule A with lithium aluminum hydride (LIAIH.) and then…
A: Consider CH3CN is the substrate and whenever this is treated with LiAlH4 followed by Acidic…
Q: Calculate the ΔG of the acid/base neutralization reaction of HCl (aq) and solid calcium hydroxide.…
A:
Q: Why are the protons attached to N in the first 2 amides selectively deprotonated by a base while in…
A: Given structures of amide are : Options are :
Q: . A linear plot of molar conductivity versus square root of concentration for AB2 electrolyte gives…
A:
Q: In an experiment to determine the concentration of H2SO4 in a brand of toilet cleanser, 10.0 cm3 of…
A: All the necessary calculations have been done in the following step.
Q: Help Chandler prepare 1.5 L of 0.25 M phosphate buffer with pH 6.15 (K, for H2PO4 = 6.30 x 10-8)…
A: Desired pH of the buffer solution = 6.15 Since 6.15 is closer to the Ka2 value of phosphoric acid…
Q: Is the reaction of cyanide and and aldehyde reversible? If so, under what conditions? ÇN NaCN ОН HCI
A: Given reaction is : Is the reaction of cyanide and aldehyde reversible ? If so, under what…
Q: Which of the following statements is TRUE regarding colligative properties in solution? Select one:…
A:
Q: CI- from Br Synthesize
A: ->Aromatic compounds give electrophilic aromatic substitution reaction. ->In Friedel craft…
Q: What is the product (name and stable structure) formed from the reaction: CH3CH2C≡CCH2CH3 + H2O…
A: ->Acidic hydrolysis of alkyne produce acetone as major product . ->First of all enol form…
Q: Will 260 milligrams of calcium carbonate raise the pH of 75.0 milliliters of stomach fluid from a…
A: Calcium carbonate is CaCO3 which is a diacidic base. The balanced equation for the neutralization…
Q: 88. Copper and bromine react according to this equation: Cu (s) + Br, () → CuBr, (s) If 0.39 moles…
A: Cu(s) + Br2(l) ....> CuBr2(s) Given that: Moles of Cu = 0.39 moles Moles of Br2 = 0.25 moles
Q: How many atoms are present in a Mg sample with a mass of 10.6 grams?
A: Given, mass of Mg sample = 10.6 g Number of atoms present in 10.6 g of Mg sample = ? Note: molar…
Q: 09) What is the degree of the degeneracy of a state You for a particle confined in cubic box A)1 B)…
A:
Q: Draw the structure for (E,E) 3,5-octadiene
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Incorrect Your answer is incorrect. • KC: Your answer is incorrect. • Cacl, Vour answer is incorrect. For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with pH. If the solubility does change, pick the pH at which you'd expect the highest solubility. You'll ind K, data in the ALEKS Data tab. Does enlubility change with pH? hiyhest solubility compound pll 5 pll 6 pll 8 yes O no yes Ba(OH), O no O yes Caci, e noWhich of the following steps MUST be done prior to titration of an analyte? I. Prepare a standardized solution II. Wash the burette with a standardized solution III. Fill the burette to the 50-mL mark IV. Prepare a contrast paper to determine burette volume and titration endpointTopic: Standardization of acid and base with back titration Note: Include up to 4 decimal places Kindly explain the process Thank you!
- Review the list of common titration errors. Determine whether each error would cause the calculation for moles of analyte to be too high, too low, or have no effect. adding titrant past the color change of the analyte solution recording the molarity of titrant as 0.1 M rather than its actual value of 0.01 M spilling some analyte out of the flask during the titration starting the titration with air bubbles in the buret filling the buret above the 0.0 mL volume mark Answer Bank no effect too low too high 7Thank you! Data included in picture! No hand drawn graphs!! Determine the equivalence point of sudsy ammonia/citric acid reaction by graphing the titration data (pH vs volume citric acid) from Table 1: No Indicator Data Table. Draw a green arrow (use ‘Insert Shape’ feature to do this once you have copied your graph from Excel) on your graph indicating the data point that represents your equivalence point. Use a graphing software to create the x-y scatter plot showing the pH of the experimental solution as a function of the volume of citric acid (the titrant) added for the titration in Part 4. On your graph, the x-axis should be the volume of citric acid added (mL), and the y-axis should be the pH of the experimental solution at that volume. Do NOT connect your points; no trend line needed and make sure to: · Label the axes including the units in parentheses. · Include a figure legend (text below the graph) explaining the data in your graph that includes the arrow…Solve correctly please. A 100 mL solution is prepared by weighing 1.50 g from the mixture of KI and KBr. When the 20 mL part taken from this solution is titrated with 0.02 M AgNO3 solution, 105 mL is consumed. Accordingly, calculate the percentage of Kl in the mixture. (KI: 166 KBr: 119 g/mol) A. 56.3 B. 59 C. 41 D. 43.7 (Gpt/ai wrong answer not allowed)
- Identify which of the graphs represent the given titration experiments best. Graph A Graph B 12 12 11- 11- 10- 10- 9- 9- 8- 8- 7- 7- 6- 6- 5- 5- 4- 3- 3- 2- 2 1 10 15 20 25 30 35 40 45 50 10 15 20 25 30 35 40 45 50 Titrant.volume Cml). Titrant.volume (mL). Answer Bank This graph does not represent a titration. a basic solution titrated with an acid an acidic solution titrated with a base Hd Hd1. Prepare 50-mL of a 50 mM H,PO, solution in a 50-ml conical tube. Molar mass of NaH2PO4 H2O used is 138 moles 2. Check the pH of this solution and record. 3. A5 M NAOH solution has been provided. 4. Add 45 µl of 5 M NaOH into the 50 mM H2PO, solution. Check the pH and record. 5. Add 205 µl of 5M NaOH into the 50 mM H2PO4 solution. Check the pH and record. 6. Add 205 µL more of 5M NaOH into the 50 mM H2PO, solution. Check the pH and record. 7. Add 45 µl of 5 M NaOH into the 50 mM H2PO, solution. Check the pH and record. Complete the following table "predicted pH." Please show all work on a separate sheet of paper and attach. Note that the pK, of H2PO, is 7.2. What would be the predicted pH's? Would they be similar to the actual pH's from procedure? After 45 µl of 5 | After 205 µl more of 5M NaOH Original After 205 µl more After 45 µl more solution M NaOH of 5M NaOH of 5 M NaOH Actual pH 4.30 6.05 6.90 11.01 11.29 Predicted pH1. Molarity of the NaOH solution 0.238 mol/L Trial 1 Trial 2 Trial 2. Volume of H;PO4 added to flask 22.0 mL 22.0 mL 22.0 mL 3. Initial NaOH volume _0.25_ mL _0.75_ mL 0.55 mL 4. Final NaOH volume 17.60_ mL 18.20_ mL _17.90_ mL 5. NAOH volume used for titration to reach green end point mL mL mL 6. NaOH volume used for titration 7. Moles of NaOH used for titration mol mel mel 8. Moles of H;PO4 that reacted mol mel mol 9. Volume of H;PO4 added to flask L 10. Molarity of H3PO4 mol/L mol/L mol/L
- pure water MISSED THIS? Read Section 18.5 (Pages 817 - 822) . Express your answer in moles per liter to three significant figures. • View Available Hint(s) Calculate the molar solubility of CuX (for which = 1.27 x 10-36) in each of the following. Ksp = ? S = M Submit Part B 0.25 M CuCl2 Express your answer in moles per liter to two significant figures. • View Available Hint(s) ? S = M Submit Part C 0.23 M Na2X Express your answer in moles per liter to two significant figures. • View Available Hint(s) ΑΣφ ? S = MA student carries out a titration to determine the molar mass and structure of a weak acid A. The student follows the method below. Dissolve a weighed mass of A in 100 cm3 of distilled water and make the solution up to 250 cm in a beaker. Add the solution of A to a burette. Titrate the solution of A with a standard solution of sodium hydroxide, NAOH. (a) What is meant by the term standard solution? (b) Sodium hydroxide is an alkali. What is meant by the term alkali? (c) The student carries out a trial, followed by three further titrations. The diagram shows the initial and final burette readings for the three further titrations. The student measures all burette readings to the nearest 0.05 cm3. Titration 1 Titration 2 Titration 3 Initial reading Final reading Initial reading Final reading Initial reading Final reading 27Suppose there was a large air bubble in the tip of the acid burette during the titration and it was dislodged toward the end of your titration. Explain the effect that this would have on the calculated value of the acid's molarity.