(1) Careless Carlie weighed her KHP sample, but forgot to bring her report sheet along, so she recorded the mass of KHP on a paper towel. During her titration, which required 18.46 mL of base, she spilled some base on her hands. She remembered to wash her hands, but forgot about the data on the towel, and used it to dry her hands. When she went to calculate the molarity of the base, Carlie discovered that she didn’t have the mass of her KHP. Her kindhearted instructor told Carlie that her base was 0.2987 M. Calculate the mass of Carlie’s KHP sample. Show calculations       (2) What mass of solid NaOH would be needed to make 645 mL of Carlie’s NaOH solution? Show calculations.

Q: . A 0.57 gram sample aspirin (MM=180 g/mol) is crushed and dissolved in water. The sample is…

A: Since you have posted multiple questions, we are entitled to answer the first only. 1) Given: Mass…

Q: How will the following situations affect the final calculation of the molarity of HC2H3O2? A small…

A: (a)A small amount of vinegar adhered to the side of the flask remains unreacted at the end point of…

Q: Lactic acid is what causes the muscles the feeling of soreness or fatigue. In vitro study was done…

A:

Q: How is the molarity of a 0.50 M KBr solution changed when water is addedto double its volume?

A: Molarity is used in the calculation of quantity of solute or the volume of solvent in a solution,…

Q: Based on your ICE table and definition of Ka, set up the expression for Ka in order to determine the…

A: As CH3COOH is a weak acid, it does not completely dissociate into its ions, CH3COO- and H+. Let x M…

Q: A suitable method for the determination of vitamin C (ascorbic acid, C6H3O6) is a titration with…

A: Ascorbic acid (vitamin C) is mainly found in fresh fruits such as lemon, orange, lime, peach,…

Q: A student titrates a water sample (V-100 ml) with 0.05N H2S04, find the quantity and quality of the…

A: A question based on concentration terms that is to be accomplished.

Q: You want to analyze a cider that contains 5.6 g / L of lactic acid. If you have two NaOH solutions,…

A: The molar mass of lactic acid =90.08 g/mol Mass of lactic acid = 5.6 g/L

Q: Suka-tuba is a vinegar variety derived by fermenting the sap of a coconut tree. You are tasked to…

A: KHP is potassium hydrogen phthalate. KHP is a standard solution which is used for standardization of…

Q: Based from the Molarity of the palmitic acid solution that you were able to solve from the previous…

A: The equation of dilution is given by, M1V 1= M2V2  where M1 is the molarity of stock solution; V1…

Q: What is the molarity of 100.0 mL lactic acid solution that is prepared by taking 10.0 mL from stock…

A: Volume of Stock solution taken V = 10.0 mL Density of stock solution d = 1.21 g/mL Mass of stock…

Q: (A) if both sentences are true, (B) if both sentences are false, (C) if the first sentence is true…

A: Winkler's method is used to measure the dissolved oxygen in seawater. Chemicals are added to water…

Q: What is the pHpH after the addition of 10.0 mLmL of 0.140 MNaOHMNaOH to 25.0 mLmL of 0.110 MHNO3

A:

Q: What mass of Fe(OH)3 (MW = 106.87 g/mol) will be obtained when 100. mL of 0.240 M FeCl3 (MW = 162.2…

A:

Q: he Kjeldahl analysis is used to determine the protein content of foods. The food analyzed is heated…

A: The main element that is present in protein in nitrogen, since proteins are made of amino acid that…

Q: If 0.100 grams of unknown solid are dissolved in water and titrated with 4.68 mL of the NaOH, what…

A: Molar mass is grams / moles. We have grams from the weighed mass, we can calculate moles of acid…

Q: Suppose a group of students put 2.92 grams of an unknown solid acid into a 250-mL volumetric flask…

A:

Q: In this experiment you were given the concentration of NaOH(aq). That concentration was determined…

A: Standardization is the process of determining the exact concentration (molarity ) of a solution .…

Q: Draw a flow chart for the separation of the four cations, Ag+, Cu2+, Al3+, and Fe3+ from a solution…

A:

Q: What is usually the relationship between the volume needed to reach the end point (Vep) and the…

A: Equivalence point and end point are the terms associated with the titration of an acid with a base.…

Q: A sample of freshly precipitated and filtered silver chloride weighs 459.0 mg. If 1.00 % of the…

A: The chemical equation representing the decomposition reaction of silver chloride is shown below.

Q: In the experiment conducted to determine the amount of acetic acid in vinegar, 8.2 mL of a 0.098 M…

A: Molarity of a solution is equal to the number of moles of solute present in one liter of solution.…

Q: In a titration, 15.5 g of oxalic acid was dissolved in a flask and neutralized with 31.2 mL of NaOH.…

A: Solutions In a titration, 15.5 g of oxalic acid was dissolved in a flask and neutralized with 31.2…

Q: Sulfamic acid ( +H 3NSO 3 - , 97.094 g/mol) is a primary standard that can be used to standardize…

A:

Q: If the experiment started with solid KHP instead of a solution, why would it be acceptable to use a…

A: KHP is potassium Hydrogen Phthalate, with Molecular formula of KC8H4O4H, it is an acidic salt. When…

Q: The nitrogen and protein content of a 0.757 g sample of flour sample was analyzed using Kjeldahl…

A:

Q: The molar mass of potassium hydrogen phthalate (KHC8H4O4, abbreviation KHP) is 204.22 grams per…

A: Given data,Mass of KHP=1.32gMolar mass of KHP=204.22g/molVolume of NaOH=15.06mL=0.01506L

Q: 1. Into a 250-mL beaker, use a pipette to precisely add 10.00 mL of the hydrogen peroxide, H2O2,…

A: In titration the volume of solution added from burette is to be calculate from the change in final…

Q: What willl be the Molar concertration of the 288.9  HCl solution prepared from 3 mL of concentrated…

A: 1- First calculate the moles of HCl :  Mass of HCl = [ Density × Volume ]  Mass of HCl = [ 1.18g/mL…

Q: Solution A was prepared by weighing 6.08 grams of K3Fe(CN)6 (MW 329.2 g/mol) and dissolving the…

A:

Q: The tartaric acid, H2C4H4O6 (150.087 g/mol ) in 100.0 mL wine sample was determined using sodium…

A: The question is based on the concept of titrations.   we are titrating  a weak acid with a strong…

Q: B. The incomplete combustion of octane (C8H18), a component of gasoline, produces carbe monoxide…

A:

Q: What mass of Fe(OH)3 (MW = 106.87 g/mol) will be obtained when 100. mL of 0.240 M FeCl3 (MW = 162.2…

A: The balance equation: FeCl3(aq)  +  3NaOH(aq)  --->  Fe(OH)3(s)  + 3NaCl(aq) 1 mol              3…

Q: If aqueous solutions of Mg(C2H3O2)2 and LiOH are mixed, which insoluble precipitate is formed?

A: Precipitation reaction: The formation of the product is insoluble when the ions combine in the…

Q: In the standardization of HCl using pure anhydrous sodium carbonate as the primary standard for…

A: At the equivalence point,  Amount of HCl = Amount of sodium carbonate  Amount = Volume ×…

Q: If 110.0 mL of 0.0030 MNa2SO4(aq) is saturated with CaSO4, how many grams of CaSO4 would be present…

A: Given: Concentration of Na2SO4 = 0.003 M And volume of solution = 110.0 mL = 0.110 L…

Q: Suppose you have a 1.000 L bottole of seltzer, which contains dissolved carbon dioxide as the solute…

A: Given,Molarity of CO2=0.000374mol/LVolume of Solution=1.0LMolar mass of CO2=44g/mol

Q: You want to determine the concentration of NaCl in a water. In preliminary analysis, it appears to…

A: A numerical problem based on quantitative analysis, which is to be accomplished.

Q: The molar mass of potassium hydrogen phthalate (KHC3H4O4, abbreviation KHP) is 204.22 grams per…

A:

Q: In a test tube you add 2 mL of saturated chlorine water followed by about 1 mL of an organic solvent…

A: The compound that gains electrons and helps in the oxidation is called reduced species. Its…

Q: Liza carefully pipets 25.0 mL of 0.525 M NaOH into a test tube. She places the test tube into a…

A: Given data contains, Volume of NaOH is 25.0 mL. Molarity of NaOH is 0.525 M. Volume of HCl is 75.0…

Q: 3) When excess sliver nitrate was added to 25.00 ml of barium chloride, a precipitate of sliver…

A: Here excess of AgNO3 was added to 25 ml of BaCl2 solution in order to precipitate all Cl^- to AgCl.…

Q: 3. how would the following errors affect the concentration of Cl- obtained in question 2b? give your…

A: Original molarity was 0.02014M.  The student read it as 0.02104M   The student passed the endpoint…

Q: During lab you have a solution of 1M NaCl at room temperature. You accidentally add so much salt to…

A: Saturated solution is a solution in which no more solute can be dissolved in a given amount of…

Q: Precipitation gravimetry : In precipitation gravimetry , the analyte is converted to a sparingly…

A: The statement is True In the precipitation gravimetry the analyte is transformed into the moderately…

Q: Potassium hydrogen phthalate is used as a primary standard in finding the concentration of a…

A: Potassium hydrogen phthalate is used as a primary standard in finding the concentration of a…

Q: A 0.42 gram sample of acetylsalicylic acid (C₉H₈O₄, aspirin) is crushed and dissolved in water. The…

A:

Q: 1.00 grams of table salt was dissolved in 100 mL water and excess AgNO3 reagent was added and…

A: Given,  The mass of table salt 1.00 grams dissolved in 100 mL water and excess AgNO3 reagent was…

Q: An aqueous solution of barium nitrate is combined with an aqueous solution ốf sodium carbonate and a…

A: Given : HCl is added to the precipitate in b i.e barium carbonate i.e BaCO3.

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".