What visibile reactions can be observed when you mixed bleach with NaI(aq)?

Q: A sample of sodium chlorate, NaClO3 (molar mass = 106.44 g/mol), is completely decomposed according…

A: Given data : Volume of O2 = 483 mL = 0.483 L Pressure of O2 = 736 torr = 0.968 atm Temperature  =…

Q: You need to use a back-titration method to experimentally determine the amount of CaCO3 in an Ultra…

A: The solution titrated with NaOH will react only with the remaining HCl. Hence the titration reaction…

Q: It takes 91 mm² of overall surface area, in the form of a calcium-based substrate sheet, (CACO3…

A: Solution: Data Given- 91 mm² of overall surface area, (CaCO3 density=2.7 g/cm³)

Q: You have prepared 1.000 M of NaOH solution. To determine the accuracy of the solution you prepared…

A: KHP is a monoprotic acid. Hence it will react with base NaOH as per the reaction, => KHP + NaOH…

Q: Describe how to prepare a 20.00-µg/mL iron solution from a 1000-mg/mL iron standard solution using…

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Q: For the analysis of trace metals it is necessary to prepare solutions of very low concentrations…

A: To solve this question we use the total volume strength formula.

Q: 2. Write the balanced equations for the chemical reactions below. Mind that calcium carbonate is an…

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Q: How to use potassium hydroxide to titrate apple cider vinegar

A: Phenolphthalein in alcohol is used as an indicator in the titration of apple cider vinegar with…

Q: A 1.9574-g of commercially available vegetable oil sample was analyzed to determine its iodine…

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Q: To prepare a standard solution of Cu²+ you obtain a piece of copper from a spool of wire. The…

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Q: If Phenolphthalein was added to H2O (l) + CO2 (g) → H2CO3 (aq) what color would the solution be?

A: Phenolphthalein is an indicator to determine whether the given solution is basic or not. In basic…

Q: A chemist needs to create a series of standard Cu²+ (aq) solutions for an absorbance experiment. For…

A: Molarity of the Cu+2 stock solution = 2.71 M Dilution formula isM₁V₁ = M₂V₂where M₁ and V₁ represent…

Q: There is a simple method available online on how to detect lead in lipstick. Find the method,…

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Q: A. 0.02419 B. 0.02598 C. 0.02718 D. 0.02919

A: Titration is a method of determining the amount of chemical species present by reacting it with a…

Q: In a titration experiment, 32.45 ml of 0.200 M NaOH were required to neutralize 25.00 mL of H2SO4.…

A: Sulfuric acid and sodium hydroxide are strong acid and strong base respectively. They furnish the…

Q: By reading the scientific literature, you discover that sodium dodecyl sulfate (SDS), a surfactant…

A: Since the reaction of SDS with chemical results in blue color the instrument used for its detection…

Q: analysis

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Q: For a 50ml beaker, 0.4532g of pure iron III oxide was weighed, to which 1 ml of a concentrated…

A: The objective of the question is to calculate the final concentration of the iron III cation…

Q: A solution of sodium thiosulfate was standardized by dissolving 0.1906 g KIO3 (214.00 g/mol) in…

A: Given :-  Mass of KIO3 = 0.1906 g  Molar mass of KIO3 = 214.00 g/mol  Volume of Sodium thiosulphate…

Q: Why does the glasswares need to be rinsed with 0.1 M HNO3 prior to use?

A: Analytical chemistry is branch of chemistry that refers  to technique for the detection,…

Q: Five white, 500-mg uncoated ascorbic acid (AA) tablets with an average weight of 0.6100-g were…

A: To calculate the amount of ascorbic acid present in a uncoated ascorbic acid tablet having an…

Q: Chemistry What is the mass of MnCl2 (97% purity) required to make 50 mL of 350 UM Mn(II)?

A: Given :  Volume of Mn(II) solution = 50 ml  Concentration of Mn(II) = 350 uM  Purity of MnCl2 = 97%…

Q: Choose from this list all of the solutions containing compounds that act as Arrhenius bases. 0…

A: Given compounds: H2SO4(aq) BF3(aq) Cs(OH)2(aq) HClO3(aq) Al(OH)3(aq) We have to find the compounds…

Q: O Macmillan Learning A chemist needs to create a series of standard Cu² (aq) solutions for an…

A: Molarity of the Cu+2 stock solution= 2.71 M Dilution formula isM₁V₁ = M₂V₂where M₁ and V₁ represent…

Q: 4. The bicinchoninic acid (BCA) assay is a non-specific assay that measures the quantity of protein…

A: BCA is one of the assay by the concentration of protein in a sample can be analysed and determined

Q: Use the following atomic masses (in g/mol): Mg = 24.31; O = 16; Ca = 40.08; C = 12.01; Na = 23; H =…

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Q: You dissolve 1.234g of Ni(NO3)2 powder into some water, poured this into 1.00L volumetric flask and…

A: Given, mass of Ni(NO3)2 = 1.234 g, Volume = 1 L, Absorbance = 2.345 x molarlity

Q: A 1.0325-g sample of a wheat flour was analyzed by the Kjeldahl procedure. The ammonia formed was…

A: The excess of HCl used can be calculated using, Millimoles of NaOH = millimoles of HCl Getting this…

Q: A mixture containing only KCl (74.55 g/mol) & NaBr (102.89 g/mol) was analyzed by the Mohr method. A…

A: Chloride ion concentration of an unknown sample can be calculated using Mohr method.  In Mohr…

Q: A chemist needs to create a series of standard Cu²+(aq) solutions for an absorbance experiment. For…

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Q: A student determined the concentration of copper by ion exchange. He obtained the following results:…

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Q: concentration

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Q: A student is given 1.525 g of pure CuO. To recover the Cu present in the compound, the dark powdery…

A: CuO + 2 HCl ------> CuCl2 + H2O As per the balanced…

Q: A chemist needs to create a series of standard Cu²+ (aq) solutions for an absorbance experiment. For…

A: Molarity of the Cu+2 stock solution= 2.07 M  Dilution formula is M₁V₁ = M₂V₂ where M₁ and V₁…

Q: Show with appropriate net ionic equations how Cr3+ and Cd2+ can be removed from wastewater by…

A: Introduction to Net Ionic Reaction- The chemical equation known as the net ionic equation only…

Q: A student prepares a dilute solution of sodium hydroxide, NaOH (aq), starting with 6 M sodium…

A: A) Given : Volume of diluted NaOH solution required = 21.84 mL = 0.02184 L…

Q: Shana, a student in the Analytical Chemistry class, performed a Redox Titration to determine the…

A: First of all calculate the moles of KIO3 prepared- n: moles of KIO3. m: given mass of KIO3. M:…

Q: E of acetylsalicylic acid in the tablets.

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Q: Part of a buret measuring in mL is shown below. Read the volume to the proper number of significant…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Does the conductivity increase or decrease?

A: In this reaction,  Ba(OH)2 reacts with H2SO4 to form precipitate of BaSO4  Reaction is : Ba(OH)2 +…

Q: A quantitative analysis for ethanol, C2H60, is accomplished by a redox back titration. Ethanol is…

A: The explanation is given below-

Q: A 75.0 mL solution of potassium iodate (KIO3, 214.0 g/mol, 98%) was treated with KI and H2SO4 and…

A: Mass of primary standard i.e KIO3 = 0.0325 g KIO3 + 5KI + 3H2SO4 = 3K2SO4 + 3H2O + 3I2  3I2 +…