Would the calculated value of the molarity of the NaOH solution be too high or too low or unchanged if the following errors were made? -The buret tip was too far above the mouth of the flask and two drops of the NaOH ran down the outside of the flask.

Q: Consider the following reaction: Pb(NO3)2 (aq) + 2NACI (aq) --> PbCl2 (s) + 2NaNO3 (aq) How many mL…

A:

Q: You dilute 35.00 mL of 1.12 M K2SO4 to a volume of 250.00 mL of pure water. What is the…

A: The objective of the question is to determine the concentration of  in the diluted solution.

Q: Your rather annoying little brother has been sneezing and scattering suspicious toys all over the…

A: Given : Initial concentration of alcohol = 8.90 M Final concentration of solution = 3.15 M And…

Q: In lab you are given 4 bottles, each containing about 5 grams of a white substance. Near the bottles…

A: The explanation is provided below:

Q: Consider the reaction:2 K3PO4(aq) + 3 NiCl2(aq) -----> Ni3(PO4)2(s) + 6 KCl(aq)What volume of…

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Q: If 29.0 grams of MgCl2 were dissolved in 0.250 liters of water, what would be the molarity of this…

A: Given Mass of MgCl2 = 29 g Volume of solution = 0.250 L Standard value  Molar mass of MgCl2 = 95.211…

Q: 1.00 mL of 0.1OOM NaOH is about 20 drops. How many milliliters of 0.100M NaOH are in 3 drops? (this…

A: We have given that 1.00mL of 0.100M NaOH  = 20drops     how many mL of 0.100M NaOH = 3 drops

Q: Which of the following statements is incorrect?   Group of answer choices   -Both compounds and…

A: Compounds are the composed of the same type of molecules that contain more than one type of atom.…

Q: 2.) Vinegar is an aqueous solution (homogenous mixture) of acetic acid and water (aqueous= "aqua"=…

A: Therefore, from the question, Grams of acetic acid = 5 x 25 g acetic acid solution / 5% acetic acid…

Q: The concentration of an unknown protein sample was determined as 6.6 mg/ml. Calculate the…

A:

Q: 9. What volume of glacial acetic acid (in mL) is needed to prepare 200. ml of a 0.230 M acetic acid…

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Q: brine water collected from a reverse osmosis desalination plant. The collected water sample was…

A:

Q: A 1.787 g sample containing some Fe2+ ion requires 31.50 ml of a 0.02188 M KMnO4 solution to reach a…

A: We are given with,         31.5 mL of 0.02188 M KMnO4 solution. Let us find the Moles of KMnO4,…

Q: Potassium cyanide is a toxic substance, and the median lethal dose depends on the mass of the person…

A: 1. Molarity=Moles of solute/Volume of solution (in litres)

Q: Calculate the molarity (M) of an HCl solution prepared by adding 2.50 mL of 12.0 M HCl (concentrated…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: Convert the experimental glucose concentration (provided in the table below) from mM (millimolar) to…

A: To determine the concentration of glucose solution in g/100 mL solution.Drink #Glucose Concentration…

Q: by Calculate the moles of sodium hydroxide in the desired diluted solution. (To avoid introducing…

A: Dilution of a solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: A student needs to prepare 50.0 mL50.0 mL of a 0.80 M0.80 M aqueous H2O2H2O2 solution. Calculate the…

A:

Q: A chemist starts with 28mL of a 0.4M NaCl solution and dilutes it to 989mL. What is the Molar…

A: Initial concentration, M1 = 0.4M Initial volume, V1 =  28mL Final concentration, M2 = ? Final…

Q: Volume vinegar used (ml) % from label Molarity of NaOH Titration volume measurements Inital volume…

A: Molarity of titrant, NaOH used = 0.0987 M  The balanced equation for the reaction is: NaOH(aq) +…

Q: student was given a solution of unknown molarity of Potassium Hydroxide (KOH). On the lab bench the…

A: STEP 1: Following are few important properties of standard solution- Its concentration must remain…

Q: A student dissolves 15. g of benzoic acid (C,H,O₂) in 325. mL of a solvent with a density of 1.07…

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Q: When 14g MgSO4 7H2O is dissolved in 100g water the density of the solution is found to be 1.060g/mL.…

A: Molarity:  Molarity is one of the unit of concentration. It is defined as the number of moles of…

Q: The molar mass of Allura red is 496 g/mol. The stock solution contains 93.84 mg/L Allura red. 4 a.…

A:

Q: You measure 7.6mL of 1:1.92 bromine to acetic acid solution. How many moles and grams of bromine and…

A: It's mentioned that they measure 7.6mL of 1:1.92 bromine to acetic acid solution. We need to find…

Q: 45.00 mL of unknown calcium hydroxide solution is titrated with 0.300 M standard nitric acid…

A: The balanced reaction taking place is  Ca(OH)2 + 2HNO3 ------> Ca(NO3)2 + 2H2O  Hence for 1 mole…

Q: If 12.50 mL of a KOH(aq) solution is required to titrate 0.218 g of KHP, what is the molar…

A: weight in g = 1 molmolecular weight in g×weight in g                     = Number of molsVolume in…

Q: 1) Calculate the number of moles of solute present in each of the following solutions: a) 255 mL of…

A:

Q: Although other solvents are available, dichloromethane(CH₂Cl₂) is still often used to “decaffeinate”…

A: Solubility of caffeine in CH2Cl2 is 8.35 times of H2O. a) Volume of cola = 100.0 mL Amount of…

Q: In a closed system (a closed round-bottom flask), does molarity change with temperature? Why or why…

A: Molarity of any gas is defined as the

Q: If 2.5 mL of a 2.8% h2o2 solution from question 1 fully decomposes according to 2H2O2→2H2O+O2 how…

A: 2.8% means 2.8 g of H2O2 is present in 100 g of solution. Calculation of mol of H2O2 in 2.8%:…

Q: what is the correct volume of 2.5M PhMgBr in THF is needed to completely react with 1.5ml of methyl…

A: The volume of 2.5M PhMgBr in THF is needed to completely react with 1.5ml of methyl benzoate, it is…

Q: I have a question that's asking me, what is the molarity of an HCl solution if 50.0 mL is…

A: Given: Volume of HCl V1= 50.0mL= 50.0 mL Volume of NaOH V2= 40.0mL Molarity of NaOH M2= 0.40M To…

Q: In one trial determination of the concentration of NaOCl in the diluted bleach sample, 10.00 mL of…

A: Given: The volume of NaOCl = 10 mL The volume of Na2S2O3 = 29.82 mL Molarity of Na2S2O3 = 0.0195 M

Q: A student has 480.0 mL of a 0.1084 M aqueous solution of MgI, to use in an experiment. He…

A:

Q: What is the molar it’s of NaOH of each trial and the average molarity of NaOH

A: We can calculate the molarity of NaOH by using the eqn.  M HCl VHCl = M NaOHVNaOH Usually in acid -…

Q: If 29.0 grams of MgCl2 were dissolved in 0.250 liters of water, what would be the molarity of this…

A:

Q: 40.00 mL of unknown calcium hydroxide solution is titrated with 0.200 M standard nitric acid…

A: Using M1V1=M2V2

Q: Ex. 1: A sат, 500. ml volu mark on the resulting solu

A: Molarity is number of moles of solute dissolved per litre of water.

Q: Silver nitrate AgNO3 (molar mass = 169.9 g/mol), reacts with sodium chromate Na2CrO4 (molar mass =…

A: Theoretical yield is defined as the amount of product produced by stoichiometry of the reaction.…

Q: A 1.407 g sample of canned tuna was analyzed by the Kjeldahl method. The liberated NH3 required…

A:

Q: A chemistry student adds a quantity of an unknown solid compound X to 1.00 L of distilled water at…

A: Answer:Solubility of a solution is equal to the ratio of mass of solute and volume of solution, so,

Q: trial molarity of Hci molarity of NaOH volume of HCI volume of NaOH 1 1M 2M 200mL 200mL 2 1M 1M…

A: Limiting reagent is the species which present in lesser amount and get completely consumed during a…

Q: Why does it take a long time for a polymer (PVA) to dissolve in water when a similar mass of sugar…

A: A polymer will take long time to dissolve in water but compounds such as sugar (sucrose) or NaCl…

Q: Gastric acid pH can range from 1 to 4, and most of the acid is HCl. For a sample of stomach acid…

A: Given data : Concentration of HCl = 1.77 x 10-2 M Volume of stomach acid = 11.7 mL = 0.0117 L We…

Q: What is the molar concentration of sodium chlorate in this sample?

A: Molarity is the ratio of number of moles of solute to the volume of solution (in L)

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.