What is the pH of a balsamic vinegar having an acetic acid (M.W. = 60.05 g/mol; Ka = 1.8 x 10-5) content of 5% (w/v)? w/v = weight of acetic acid/volume of vinegar. (show work)
Q: Results: Part 1: Sensor reading Solution Step Initial Vol (ml) Final Vol (ml) Molarity Moles of…
A: We are given the volume(V) and molarity(C) of each solution. We can find the moles of the solute…
Q: <10-50 4. Solid magnesium fluoride dissolves and forms a saturated solution in water at 25°C. The…
A:
Q: A chunk of Zn was breaks down on 200 mL of 0.750 mol/Liter Hydrochloric acid. After that rx, 100 mL…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Which of the following is a primary standard for NaOH? A. None of these B. Potassium acid phthalate…
A: The major problem while weighing sodium hydroxide is that the solid absorbs moisture from its…
Q: Make a schematic diagram for the procedure below: B. % SO3 determination Dry the soluble sulfate…
A: Given: procedure of % SO3 determination. To find: a schematic diagram for the procedure.
Q: 5. From the stock solutions of 1.00-mol L acetic acid and 1.00-mol L of sodium acetate, six…
A: The volume of 1.00 mol L-1 stock solution of acetic acid and 1.00 mol L-1 stock solution of sodium…
Q: prepare ( 0.3 M ) of HCl in 250 ml water, when you know Sp.Gr=1.18 and % = 36% . At.Wt / H=1 , Cl=…
A: Given = Specific gravity = 1.18g/mL Mass % of HCl = 36 % Molar Mass Of HCl= At Wt. of H + At. Wt. Of…
Q: What is the maximum metallic concentration in 100.0 liters of water from a metallic hydroxide with a…
A:
Q: The thiourea in a 1.455 g sample of organic material was extracted into a dilute sulfuric acid…
A: Generally, qualitative analysis refers to the presence or absence of different chemical (number of)…
Q: 10-27. A 10.231-g sample of window cleaner containing ammonia was diluted with 39.466 g of water.…
A:
Q: Part A Are the following solutions isotonic, hypotonic, or hypertonic compared with physiokogical…
A:
Q: lews SEC # Evaluation of Commercial Bleaching Solutions 22 DATA SHEET Brand name of commercial…
A: Concentration of NaOCl = M1 = 0.175M VOlume of NaOCl = V1 Concentration of KI = M2 = 0.225M Volume…
Q: I'm not sure how to solve for Molarity of NaOH and average molarity of NaOH
A: Molarity = no of moles per unit volume Given Volume.of acid = 25 mL Molarity of acid = 0.0762 M…
Q: . Does the value of the equilibrium constant change when the concentration of either the reactants…
A: You have asked about part (B) only, I have to answer part (B),so, let's start. Given, Balanced…
Q: Chemistry 1) A new well has been drilled for a municipality. Based on the analysis, please recommend…
A: The quality of drinking water is very much related to the health of individuals. World Health…
Q: 6.Why: a) saturated NaCl, b) saturated NaHCO3, are used to wash (work up steps) organic product?…
A: Limiting reactant: The limiting reactant is the reactant that gets used up in a chemical reaction…
Q: Table 1: Volumes in of iodine in mL used to titrate mixtures of 10 mL of reaction mix and 10 mL of…
A: Given : CF = 1.06 TVS (mg/hour) = x (ml) X CF ( mg vit.C/ mL iodine ) X TV (mL/…
Q: V. Data and Results Given: 0.1 N standard NaOH solution Sample 1 1.3296 g Sample 2 0.78 g Sample 3…
A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…
Q: In which of the following mixture(s) would CaF2(s) (Ksp = 4.0 x 10-11) form? 30 mL of 0.00020…
A:
Q: What is the final concentration of hydrocortisone in the mixture, as a ratio strength, if 5 g of…
A:
Q: how to find culculated ka and literature Ka for acetic acid
A: We are given pH values of acetic acid at different concentrations, we have to find calculated value…
Q: How to calculate H2 consumption amount from TPR?
A: The specific reaction is AgO + H2 → Ag + H2O. Thirty-six analyses of this particular batch of…
Q: mixing 200 mL of 0.450 M KCl and 350 mL of 0.200 M K2SO4. Discuss your results. B: At 25°C, what is…
A: A) Use molarity= mole×volume All the information is given
Q: Find the ksp of PbCl2 5.0 g od pbcl2 100ml of h2o
A: GIVEN DATA: given mass of PbCl2: 5gm Molar mass of PbCl2 is 278.1gmol-1 water = 100ml
Q: 3. What is the effect of adding the acid before KI?
A:
Q: An unknown hydrocarbon fuel combusts with air; the resulting products have the following dry…
A:
Q: A solution of Ca(OH)2 (FM = 74.09) was used in determining the equivalent weight of an unknown acid.…
A: The number of moles of KHP can be determined as follows: Number of moles of KHP = Given mass of…
Q: Part A MISSED THIS? Watch KCV 17.5, IWE 17.8; Read Section AgCl 17.5. You can click on the Review…
A:
Q: What volume of 2 M Tris-HCl, pH 8.0 (in microliters) will you need in order to make 10 mL of 10 mM…
A:
Q: Find the fraction in the form NH3 at pH 10.00.
A: pKb of ammonia, NH3 = 4.74 pKa of NH4+ =14 - pKb=14 - 4.74=9.26
Q: If pH (± 0.5 pH units) strips were used to determine the equivalence point at pH=8.5. What is the…
A: The method you have done and all this is fine and correct. There may be some other problem like…
Q: 1 nickel (II) acetate is slowly added to 125 mL of 0.00846 M ammonium carbonate solution. What is…
A: The question is based on the concept of solubility product Principle. it states that a weak…
Q: Objectives: To determine the percent mass of acetic acid in vinegar Data: Vinegar Sample : Trial 1…
A: We are given the experimental data and we have to calculate the mass % of acetic acid in vinegar…
Q: 25 ml of pickled brine was taken from an apple pickled with vinegar and diluted to 500 ml, 25 ml of…
A: The dilution law is shown below: N1V1 = N2V2 where; N1 = normality of unknown acid/base V1 = volume…
Q: Tim is interested in analyzing for Pyraclostrobin (pesticide) in strawberries using QuECHers method…
A: 1-10 mg of pesticide is on per gram of the fruitThe tim is slicing 500mg fruit i.e. its's possible…
Q: 1.00 g of NH3(g) is dissolved into 100. mL of water. Kb of NH3 = 1.80 x 10 5. What is the pH of the…
A: Given that : Mass of NH3 = 1.00 g Volume of water = 100 mL = 0.1 L Kb of NH3 is 1.80 x 10-5 So, pKb…
Q: CALULATE FINL CONCENTRATION USING 2 IG FIGS AND APPROPRIATE UNITS A 6.0 mLmsample of a 50.0 %…
A: Given - Volume of acetic acid solution = 6.0 mL % (m/v) of acetic acid solution = 50.0% Final…
Q: A weight of 0.50 g was taken impure container containing sodium carbonate and bicarbonate. Dissolved…
A: In the carbonate composition analysis, the mixture containing unknown amounts of sodium carbonate…
Q: Run 1 Volume of Vinegar 2.00 mL Used Concentration of NaOH Initial Buret reading Final Buret reading…
A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…
Q: B. %SO3 determination 1. Dry the soluble sulfate sample at 100°C for 1-2 hours, and cool in…
A: We need to make a schematic diagram for the given procedure.
Q: 7-10. Sulfamic acid is a primary standard that can be used to standardize NaOH. +H3NSO, + OH →…
A:
Q: H. ОН PCC .COOH COOH or Na,Cr,0/ OH HNO, or HOAC KMNO, or NaOCI Cyclohexanol bp 161.5°C, den. 0.96…
A: The required mechanism is shown below Here initially oxidation of secondary alcohol to a ketone…
Q: 5.35g of salicylic acid added to 7.75mL of methanol followed by 10 drops of sulfuric acid,H2SO4 and…
A:
Q: A 5.00 mL sample of white vinegar is diluted in acetone and analyzed by GC-TCD using 1-propanol as…
A:
Q: What is the coefficient of H20 when the following equation is properly balanced with the smallest…
A: In a balanced chemical reaction, the number of atoms of each element on the reactant side is equal…
Q: A solution of anhydrous sodium carbonate was made by adding 2.33 g of this salt to a 250.0 mL…
A: Molarity (M) :- The number of moles of solute dissolved in one litre of solution is defined as…
Q: Part B - Determination of Mg(OH)2 in Milk of Magnesia Mass of sample 50g Total Volume HCl used 80ml…
A:
Q: 1. Prepare a fresh stock solution of 50 cm3of 0.2% ascorbic acid. 2. Prepare 5 standard solutions…
A: 0.2% solution is equivalent to 2mg/mL. Since, the stock solution has to be 50cm3 , i.e. 50mL. For…
Q: Calculate the water hardness (mg L-1 of CaCO3) (i.e. calculate the mass of CaCO3)
A:
Q: Report Sheet: Characterization of a Weak Acid. UNKNOWN NUMBER A. Standardization of NaOH Solution…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Following titration analysis, a sample of a fruit juice was found to contain 8.9 mg cm-3 ascorbic acid. Given that the Mr value for ascorbic acid is 176.1 Da, calculate the value of the ascorbic acid concentration expressed in units of mmols dm-3 then enter itWhatis the molarity of a vinegar (acetic acid) solution if 50.00 mL were titrated to a phenolphthalein endpoint with 42.15mL of 0.200 M sodium hydroxide (NaOH)? Show all workMUST ANSWER BOYH SUBPARTS A AND B A 1.161g sample of pure maleic acid (H2M, 116.1 g/mol) with Ka1 and Ka2 values of 1.42 × 10-2 and 8.57 ×10-7, respectively, was contained in a 100.0 mL solution with a pH of 5.0. In solution, maleic acid can dissociate into HM- and M2- species. The three species (H2M, HM- and M2-) exist in the solution at varying concentrations that depend on the pH of the solution. a) Calculate the values of α1 (alpha 1) and α3 (alpha 3). b) Calculate the concentration of HM- in the above solution.
- How do I prepare these solutions? I do not know what volumes or molarities to be added from the initial step. Thank you. 1. Prepare a fresh stock solution of 50 cm3of 0.2% ascorbic acid. 2. Prepare 5 standard solutions of ascorbic acid in volumetric flasks of 25 cm3. 3. To each volumetric flask add 0.5 cm3 of 0.5M acetate buffer and different volumes of 0.2% ascorbic acid to make 0.01 mM, 0.02 mM, 0.03 mM, 0.04 mM and 0.05 mM solutions. Dilute to the mark with distilled water.Fast pls i will give u like for sure solve this question correctly in 5 min pls A student analyzed a CaCO3 antacid tablet by neutralizing the base with an excess of .60 M HCL and back-titrating the excess with .50M NaOH. He recorded the following data: mass of tablet = 1.3g amount of active ingredient CaCO3 per label = 500 mg volume of HCl added: 25 mL initial buret reading : 34 mL final buret reading : 47.4 mL If the concentration of the provided HCl is actually higher than .60M, would the determined mass of CaCO3 in the antacid tablet be too high or too low?why is it necessary to test the ph? EXTRME DETAIL PLEASE PROCEDURE To a six inch test tube was added thiamine hydrochloride (0.65 g), followed by water (2mL). The mixture was gently shaken until homogeneous, and then ethanol (7.5 mL)was added. Finally, sodium hydroxide (10%, 1.5 mL) was added and the mixture wasgently stirred to ensure complete mixing.Benzaldehyde (3.8 mL) was then added at room temperature in one portion with gentlestirring. The pH of the resulting reaction mixture was determined and adjusted to >10by dropwise addition of 10% sodium hydroxide.
- Prepare 250 mL stock acetic acid solutions and from this solution prepare 100 mL of eachstandard solutions (you have pippette with sensitivity of 0.1 mL). (0.015 M 0.030 M 0.060 M 0.090M 0.12 M 0.15 M)A 50.00 (±0.02) mL portion of an HCl solution required 29.71(±0.02) mL of 0.01963(±0.0032) M Ba(OH)2 to reach an end point with bromocresol green indicator. ? of HCL = 29.71?? ? 0.01963 ???? ??(??)2 ?? ? 2 ???? ??? ???? ??(??)2/ 50.00?? = 0.02333 ? Calculate the uncertainty of the result (absolute error).Calculate the coefficient of variation for the result.The pH for 0.050 M CH3NH2 (Kb for CH3NH2 = 4.0 X 10^-4 )?
- 1. is pH scales is strictly btw 0 and 14? if not, why? 2. what is CSTR? is this heterogenous? is this concentration depends on location? 3. is steady state, mass can enter ot not? leave the control volume or not?the ksp of calcium hydroxide is 4.86x10^-6Trial 1: Initial pH= 3.92mL Mass of KHP and Paper= 0.868g Mass of paper= 0.357g Mass of KHP= 0.511g Trial 2: Initial pH= 4.09ml Mass of KHP and Paper= 0.870g Mass of paper= 0.359g Mass of KHP= 0.511g 1)Use Kb, the number of moles of C8H4O4^2- at the equivalence point, and the total volume at that point to calculate the pH for each sample at the equivalence point. Compare these calculated results with the experimental results.