B. STANDARDIZATION OF A CALCIUM HYDROXIDE SOLUTIONWrite a balanced chemical equation for the reaction of hydrochloric acid with calcium hydroxide. Includesof reactants and products.Equation:2HCI + cacoH) cac12+2H20Data and Results:Molarity of hydrochloric acidVolume of hydrochloric acidInitial buret readingFinal buret readingTrial 10.02520.9. 2020LVolume calcium hydroxide usedMoles hydrochloric acid usedMoles calcium hydroxide usedConcentration of calcium hydroxideAverage concentration of calcium hydroxideCalculations:Trial 21000 mL1.00 mL0602991000mL0.30mL19.00 mLmLmLLL0molesmolesmolesmolesMMM0.01000LHC (0.051800/241) = 0.0005183001LHCl0.000518HC (100/600) -0.000259 mol.com2001 HM=0.000250 mol-0.0259M0.01000Experiment 21-A Review of Basic Laboratory Techniques

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Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter20: Applications Of Oxidation/reduction Titrations

Section: Chapter Questions

Problem 20.6QAP

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Complete the following reaction, which represents the decomposition of carbonic acid.
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Calculate the moles of H+ delivered to eachsample based on your experimental dataand record these values in Data Table 1. 0.1M HCl = 0.1 moles HCl / 1 Liter solution Calculate the moles of OH- in each sampleand record these values in Data Table 1. H+ + OH- H2O Calculate the moles of Ca2+ in each sampleand record these values in Data Table 1. Ca(OH)2 Ca2+ + 2OH . Calculate the molar solubility of Ca(OH)2for each sample and record these values inData Table 1. Molar solubility = moles / Liter . Calculate the Ksp for each trial and theaverage Ksp and record these values inData Table 1. Ksp = [Ca2+][OH-]2 Sample 1 Sample 2 Sample 3 Mass of Erlenmeyer Flask 25.47 25.47 25.47 Mass of Erlenmeyer Flask + Calcium Hydroxide Solution (lime water) 28.32 28.30 28.43 Mass of Calcium Hydroxide Solution 2.85 2.83 2.96 Volume of Ca(OH)2 Density = 1.000 g/mL Concentration of HCl (M) Initial HCl Volume in Syringe 1.0ml…
Question 16 of 16 (1 pomy < <= 4 = 5 6 = 7 = 8 9 =10 11 12 Suppose a 0.014.M aqueous solution of phosphoric acid (H3PO4) is prepared. Calculate the equilibrium molarity of HPO. You'll find information on the properties of phosphoric acid in the ALEKS Data resource. Round your answer to 2 significant digits. Ом
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= Predicting the qualitative acid-base properties of salts Consider the following data on some weak acids and weak bases: name nitrous acid 0.1 M KF 0.1 M KI hydrofluoric acid HF 4 acid solution 0.1 M C6H5NH3Br 0.1 M CH3NH3Cl Explanation formula HNO2 4.5 x 10" -4 6.8 x 10-4 Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. Check a pH ✓ choose one 1 (lowest) 2 3 4 (highest) choose one choose one x - 3 ? Kb formula CóHạNH, 4.3×10-10 methylamine CH3NH₂ 4.4 x 10-4 name aniline base * AND 130 tv 3/5 MacBook Air Нап Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center A @ TEA Acc
A Dashboard 101 Chem101 + а ap.101edu.co Question 10 of 16 Submit Complete the balanced chemical reaction for the following weak base with a strong acid. In this case, write the resulting acid and base as its own species in the reaction. NH:(aq) + HCI(aq) - 14- O3- |2+ 3+ 14+ 1 2 3 4 7 9. 1 I5 16 (s) (g) (aq) H3O+ H2O OH- CI Reset • x H2O Delete + 10:24 PM P Type here to search 65°F Mostly sunny 10/31/2021 1L
Write the balanced chemical equation for the dissociation of nitrous acid (HNO2) in water. Include physical states. Macmillan Lea balanced equation: Complete the Ka expression for this reaction. Ka || = Answer Bank [H+] [HNO₂] [H₂O] [OH-] [NO] [H3O+] [H₂NO]
Given the following information: formic acid = acetic acid = ered HCOOH CH3COOH HCOOH is a stronger acid than CH3COOH (1) Write the net ionic equation for the reaction that occurs when equal volumes of 0.082 M aqueous formic acid and sodium acetate are mixed. It is not necessary to include states such as (aq) or (s). Use HCOO™ as the formula for the formate ion. (2) Which is the strongest base, HCOO or CH3COO™ ? (3) At equilibrium the ✓will be favored. +
Given the following information: hydrocyanic acid HCN nitrous acid Ka = 4.0×10-10 HNO₂ K₂ = 4.5×10-4 (1) Write the net ionic equation for the reaction that occurs when equal volumes of 0.370 M aqueous hydrocyanic acid and sodium nitrite are mixed. It is not necessary to include states such as (aq) or (s). (2) At equilibrium the ( reactants OR products) will be favored. (choose one answer) (3) The pH of the resulting solution will be ( greater than, equal to, OR less than 7). (choose one answer)
Suppose a 0.17 Maqueous solution of phosphoric acid (H,PO) is prepared. Calculate the equilibrium molarity of HPO, You'l find information on the 2- properties of phosphoric acid in the ALEKS Data resource. Round your answer to 2 significant digits.

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