State what is the molarity of your naoh solution

Reference no: EM13161423

1) 0.121 grams of oxalic acid dihydrate (MW=126.068 g/mole) is dissolved in water in an Erlenmeyer flask. Remember that each mole of oxalic acid dissolved in water results in 2 moles of hydronium ion so it takes 2 moles of NaOH to neutralize one mole of oxalic acid. It requires 14.22 mLs of your prepared sodium hydroxide solution to reach the endpoint of the titration. What is the molarity of your NaOH solution? 2) You are given an impure sample of oxalic acid dihydrate (MW=126.068 g/mole) and asked to determine the percent of oxalic acid dihydrate present in the sample. You place 0.110 grams of the unknown sample in an Erlenmeyer flask and dissolve it in distilled water. Titration with 0.140 M standardized NaOH solution requires 10.10 mLs to reach the titration endpoint. What is the percent of oxalic acid dihydrate in the sample? 3)A 20.00 mL of a sample of vinegar of unknown concentration was titrated with 21.63 mL of 0.102 M sodium hydroxide solution. How many moles of acetic acid are present in the 20.00 mL sample? 4) A 20.00 mL of a sample of vinegar of unknown concentration was titrated with 18.91 mL of 0.132 M sodium hydroxide solution. How many moles of acetic acid are present in the 20.00 mL sample?

Reference no: EM13161423

Questions Cloud

State what spectroscopic techniques use to identify progress : This experiment focused on a carbonyl group converted to an imine and then to an amine. Explain what spectroscopic techniques you could use to identify the progress of this reaction

How does the concept of time apply to ecological situations : how does the concept of time apply to ecological situations and evolutionary changes.

Explain the reaction rapidly establishes equilibrium : Nitrosyl bromide, NOBr, is formed in the reaction of nitric oxide, NO, with bromine,Br2 : 2NO(g)+Br(g) 2NOBr(g) The reaction rapidly establishes equilibrium when the reactants are mixed

What type of externalities arise : What type of externalities arise from driving automobiles fueled by gasoline and what is your view on whether the United States should raise the gas tax to the European level and why?

State what is the molarity of your naoh solution : What is the molarity of your NaOH solution? 2) You are given an impure sample of oxalic acid dihydrate (MW=126.068 g/mole) and asked to determine the percent of oxalic acid dihydrate present in the sample.

Explain fraction propane and methane : 6 moles of a mixture that contains 0.7 mole fraction propane (C3H8) with the remainder methane (CH4). It is burned in air with a 10% excess of oxygen.

Find the quantity of toothpaste : Find the quantity of toothpaste that maximizes economic surplus. What is the relationship between this quantity and the market equilibrium quantity?

How protein c is a repressor or activator of transcription : The gene encoding a hormone necessary for insect development contains DNA binding sites for three gene regulatory proteins called A, B, and C. Because the binding sites for A and B overlap, A and B cannot bind simultaneously.

Explain how would the calculated value of the equilibrium : When adding the solution of HNO3 from the buret in Step 14 to beaker 4, you know that you added 2.5 mL instead of 1.5 mL for a total volume of 11.0 mL. How would the calculated value of the equilibrium constant be affected for this sample?

User Account

All Pages