5. Limestone consists mainly of mineral calcite, CaCO3. The carbonate content of 0.5413 g of powdered limestone was measured by suspending the powder in water, adding 10.00 mL of 1.396 M HCl, and heating to dissolve the solid and expel CO₂. (a). Write the chemical reaction describing this reaction. (b). If the access HCl required 39.96 mL of 0.1004 M NaOH to neutralize, find the weight percent of calcite in the limestone.

5. Limestone consists mainly of mineral calcite, CaCO3. The carbonate content of 0.5413 g of powdered limestone was measured by suspending the powder in water, adding 10.00 mL of 1.396 M HCl, and heating to dissolve the solid and expel CO₂. (a). Write the chemical reaction describing this reaction. (b). If the access HCl required 39.96 mL of 0.1004 M NaOH to neutralize, find the weight percent of calcite in the limestone.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Consider a solution of 0.200 g of Sr(OH)2 in 3.00 L of solution. (a) Show the reaction of dissociation (ionization) of Sr(OH)2. Calculate (b) the molarity of Sr(OH)2 solution (c) the molarity of OH– ions (d) the pH of the solution.
Suppose that 42.00 mL of 0.150 M NaOH is added to 0.360 g of a weak acid, H3A. The excess NaOH is then titrated with 23.40 mL of 0.120 M HCl. What is the molar mass of the acid? a) 103 g/mol b) 241 g/mol c) 190 g/mol d) 310 g/mol
3a) A student determines the concentration of a sodium hydroxide solution by titration with standardized KHP. S/he obtains the values: 0.190 M, 0.202 M, and 0.205 M. Should the value 0.190 M be rejected? Apply the Q Test. For three values Q must be greater than 0.94 to reject the number. Q = suspect nearest | largest - - smallest b) The student de to repeat the experiment two more The five values now include: 0.190 M, 0.202 M, 0.205 M, 0.201M and 0.203M. Use the Q Test to see if the first value may be rejected. For five values Q must be greater than 0.64 to reject the number. c) Solve for the average Molarity of the measurements from part b with and without the rejected number. Is there value in repeating an experiment several times?
10.5 mL of 0.139 M Mg(NO3)2 is mixed with 11.9 mL of 0.625 M NaOH. Calculate the final concentration (in M) of hydroxide ion ([OH-]) after any reaction that occurs goes to completion
Please don't provide handwriting solution
Enter your answer in the provided box. Determine the pH of (a) a 0.20 M NH3 solution. (b) a solution that is 0.20 M NH3 and 0.35 M NH,CI. K, for NH, is 1.8 x 10-5
The Ht concentration in an aqueous solution at 25 °C is 5.5 x 10 6. What is [OH ]?
2. Using the procedure described in this module, a student determined the percent KHP in an impure sample of KHP. A 3.150-g sample of impure KHP required 41.50 mL of 0.1352M NaOH solution for titration. (a) Calculate the number of moles of NaOH required for the titration. (b) Calculate the number of moles of KHP present in the impure sample of KHP. (c) Calculate the number of grams of KHP present in the impure sample. (d) Calculate the percent of KHP in the impure sample, using Equation 8. Equation 8: percent KHP in the impure sample, % = ( mass of KHP in the sample,g/ mass of sample analyzed, g) (100%)
3 and 4 go together
A solution is made from 1.53 g of benzoic acid (C6H5COOH; Ka = 6.5 × 10–5) in water to a final volume of 100. mL. Calculate the solution pH.
The pOH of an aqueous solution of 0.392 M hydrocyanic acid, (K₁ (HCN) = 4.0 × 10−¹⁰) is
Solid nickel(II) fluoride is slowly added to 50.0 mL of a potassium hydroxide solution until the concentration of nickel ion is 0.0266 M. The maximum amount of hydroxide remaining in solution is M.