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Introductory Chemistry SEF 2028 Name: 2. A 0.125-g sample of a monoprotic acid of unknown molar...
Integrated Problems #13 Milk of magnesia (Mg(OH)2)is often taken to reduce the discomfort associated with acid stomach or heartburn. The recommended dose is 1 teaspoon (5 mL) which contains 4.00 X 10-mg of Mg(OH)2. 1) Magnesium hydroxide is a slightly soluble salt. Write a balanced equilibrium reaction for this process. 2) The Ksp for Magnesium hydroxide is 2.06 X 10-13, what is the pH of the recommended dose of milk of magnesia? 3) If we assume that stomach acid is...
A 0.5220 −g sample of an unknown monoprotic acid was titrated with 9.94×10−2 M NaOH. The equivalence point of the titration occurs at 23.86 mL . Determine the molar mass of the unknown acid.
A sample of 0.2140 g of an unknown monoprotic weak acid was dissolved in 25.0 mL of water and titrated with 0.0950 M NaOH. The acid required 15.50 mL of NaOH to reach the equivalence point. What is the molar mass of the unknown acid?
A 0.5216 ?g sample of an unknown monoprotic acid was titrated with 9.94×10?2 M NaOH. The equivalence point of the titration occurs at 23.76 mL . Part A Determine the molar mass of the unknown acid. Express your answer using three significant figures
A 0.4352-g sample of an unknown monoprotic acid is dissolved in water and titrated with standardized potassium hydroxide. The equivalence point in the titration is reached after the addition of 31.14 mL of 0.1833 M potassium hydroxide to the sample of the unknown acid. Calculate the molar mass of the acid. _____ g/mol
A sample of 0.2140 grams of an unknown monoprotic weak acid was dissolved in 25.0mL of water and titrated with 0.0950M NaOH. The acid required 15.50mL of NaOH to reach the equivalence point. What is the molar mass of the unknown acid?
5. The Ka and Molar Mass of a Monoprotic Weak Acid a. Suppose that–unknown to you–the primary standard KHP (potassium hydrogen phthalate, KHC8H4O4) had a potassium iodide impurity of approximately one percent by mass. How would this have influenced the calculated molarity of your sodium hydroxide solution? Would your calculated value be too low, too high, or unchanged? Explain your answer. b. Sketch a typical titration curve for a monoprotic weak acid titrated with a strong base. Label the axes...
A 0.5240 −g sample of an unknown monoprotic acid was titrated with 9.94×10−2 M NaOH. The equivalence point of the titration occurs at 23.90 mL . Determine the molar mass of the unknown acid. Use the Ksp values to calculate the molar solubility of each of the following compounds in pure water. PART A---- MX (Ksp = 8.57×10−36)Express your answer in moles per liter. PART B----PbCl2 (Ksp = 1.17×10−5) Express your answer in moles per liter. PART C-----Ni(OH)2 (Ksp =...
Given a .210 g sample of a diprotic acid of unknown molar mass: If the acid is dissolved in water and titrated with .241 M KOH it takes 10.5 mL of base to reach the equivalence point. What is the molar mass of the solution?
A 0.155 g sample of a diprotic acid of unknown molar mass is dissolved in water and titrated with 0.1268 M NaOH. The equivalence point is reached after adding 13.2 mL of base. What is the molar mass of the unknown acid?