What mass of MgCl₂ 6H₂O is required to make a 0.200 dm³ stock solution containing 25.0 ppm Mg(II)? What volumes of this stock solution are required to make 10.0 cm³ standard solutions containing 5.00, 1.00 and 0.10 ppm Mg(II)?

What mass of MgCl₂ 6H₂O is required to make a 0.200 dm³ stock solution containing 25.0 ppm Mg(II)? What volumes of this stock solution are required to make 10.0 cm³ standard solutions containing 5.00, 1.00 and 0.10 ppm Mg(II)?

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

A student weighted a 1.150gram sample of pure KHP and titrated it with 36.45ml of KO solution. Calculate the normality of the KOH.
The solubility in acetone of organic compound O is measured and found to be 0.762 that would contain 38.0 g of O at this temperature. Be sure your answer has the correct unit symbol and 3 significant digits. 0 x10 0.0 X μ 010 at 25. °C. Calculate the volume of a saturated solution of O in acetone mL
A solution is prepared by adding 425g of AgNO3 to 0.150L of water at 40.0∘C. The solubility of AgNO3 at 40.0∘C is 311g100.mL. How many grams of AgNO3 are expected to precipitate if the temperature is dropped to 0.00∘C where the solubility of AgNO3 is only 122g100.mL? Give the answer with three significant figures.
Six 50.0 ml volumetric flask 1 through 6 are labeled. 10.00 ml of 2.00 x 10-1 M Fe(NO3)3 solution was then pipet into each volumetric flask. A 1.00,2.00,3.00,4.00 and 5.00ml of 2.00 x 10-3M NaSCN solution was then pipetted to flask 2 through 6 respectively. A sufficient amount of 0.10 M nitric acid was then added to each flask to make each a total volume of 50.00ml. Hint M1V1=M2V2 a)what would be the concentration of Fe(NO3)3 in 0.10M HNO3? b)what would be the concentration of NaSCN in 0.10M HNO3?
You are given a solution that may be either NaCl(aq) or Na2CO3(aq). Present a scheme to find whichsubstance was present in the solution.
25.0 mL of 1.00 M NaCl and 35.0 mL of 0.848 M AgNO3 are combined in a beaker. Write a balanced equation for the process that occurs, including the state of matter for each compound, and the net ionic equation for the reaction.
A 10.00 ml sample with an unknown concentration of KNO3 was studied at 60° C. If an additional 2.4 g of KNO, were added to reach saturation. What was initial concentration of Q3 KNO, in M.
What mass of NaNO3 can be dissolved in 100 mL H2O at 10oC?
Can you please help me determine all the solutions (a, b, c, and/or d) with the appropriate calculations?
A stock solution of Na2B having a concentration of 0.1486 M is used to prepare four calibration standards, A-D in the table below, by diluting the indicated volume of this solution to a total volume of 50.00 mL. Complete the table by entering the molarity of B2- for each standard solution. Show an illustrative calculation for tube ‘A’. Use the dilution formula and express each result to one more digit than allowed by applying the rules of significant figures.
the hydronium ion concentration of an aqueous salution of 0.468 M hydrofluoric acid (kg = 1·20X104) is [130] = M.
Calculate the concentration in molarity of potassium ion, K+in grams per litre after mixing 200 mL of 0.450 M KCl and 350 mL of 0.200 M K2S04. Discuss your results.