The titration of 0.9659 g of KHP (molar mass = 204.227 g/mol) requires 49.35 mL of...
The titration of 0.9541g of KHP (molar mass=204.227 g/mol)requires 42.18 mL of NaOH solution. What is the concentration of the NaOH solution?
Problem: A 1.523 gram sample of KHP (molar mass=204.22 g/mol) was dissolved in 20.00 mL of distilled water. Titrating this solution to the phenolphthalein end point required 15.30 mL with the NaOH solution. The balanced titration reaction is as follows: NaOH(aq) + KHC4H8O4(aq) -> KNaCgHO(aq) + H2O(1) Calculate the molarity of the NaOH solution. Show your work.
An unknown amount of a compound with a molecular mass of 259.45 g/mol is dissolved in a 10-mL volumetric flask. A 1,00-mL aliquot of this solution is transferred to a 2 L volumetric flask and o the mark. The absorbance of this diluted solution at 347 nm is 0.468 in a 1 cm cuvette. The molar (a) What is the concentration of the compound in the cuvette? Number b) What is the concentration of the compound in the 10-ml flask?...
Calculate the molarity of the two solutions. The first solution contains 0.500 mol of NaOH in 1.20 L of solution. molarity: 417 The second solution contains 12.7 g of NaCl in 819 mL of solution. molarity: 742.2 about us Careers privacy policy terms of use contact us help
Attem A 3.85 g sample of an unknown gas at 75 C and 1.10 atm is stored in a 1.55 L flask. What is the density of the gas? density: 2.5 g/L What is the molar mass of the gas? molar mass: 0.08 g/mol privacy policy about us terms of use careers contact un help
Materials: NaOH MW = 40 g/mL, KHP - potassium hydrogen phthalate, KHC8H404, MW = 204.23 g/mol. Acetic acid, HC2H302, MW = 60.05 g/mol Part 1: Standardization of NaOH Assume 0.951 g of KHP is weighed and transferred to a 250 mL Erlenmeyer flask. Approximately 50 ml water is added to dissolve the KHP. Note that the exact volume of water is not important because you only need to know the exact number of moles of KHP that will react with...
Materials: NaOH MW = 40 g/mL, KHP - potassium hydrogen phthalate, KHC8H404, MW = 204.23 g/mol. Acetic acid, HC2H302, MW = 60.05 g/mol Part 1: Standardization of NaOH Assume 0.951 g of KHP is weighed and transferred to a 250 mL Erlenmeyer flask. Approximately 50 ml water is added to dissolve the KHP. Note that the exact volume of water is not important because you only need to know the exact number of moles of KHP that will react with...
1065/2200 Resources Hint Check: Suppose 4.1 g MgCl, is dissolved in 660 mL of water. What is the normality of Mg2+ ions in the resulting solution? normality: about us careers privacy policy terms of use contact us help
A solution of NaOH is standardized with potassium acid phthalate (KHP), KHC8H8O4, molar mass = 204 g/mol. If 2.550 g of KHP is titrated with 54.50 mL of the NaOH solution, what is the molarity of NaOH?
What would be for the mol reacted,, mol NH4X in sample, and yhr average molar mass? CALCULATIONS A. NaOH Preparation: Approximate molarity of NaOH 0.48 M B. NaOH Standardization: Trial # Mass of KHP E 1.7249 1.9569 1.8799 Volume of NaOH 18.58 L 20.58mLihat 19.71 mL Molarity of NaOH 0.4544 M 0.4654M 0. 3 M 0.4668M Average molarity of NaOH: 0.4668 M 0.4622 M C. Molar Mass of NH X Salt 1. Volume of NaOH 0.025 0.025 0.025L 2. Molarity...