Suppose that 15M of Naci solution with a volume of 15L is heated and loses 2000ml of water content. What would be the final concentration of your Nacl sample? MW: Na=23g/mol, CI=35g/mol, H=1g/mol, 0=16g/mol A. 0.0375 M В. 375.0 М C 3.75 M D. 37.5 M Barium chloride is reacted with sodium sulfate to produce barium sulfate and sodium chloride. How many moles of the precipitate is produced from 0.8 moles of Bac12? a. None of the above b. 0.4 mole C. 1.6 moles d. 0.8 mole A 315mL of water was added to 2100 mL of 19M NacI solution. What is the new concentration of the solution? MW: Na =23 g/mol, CI =35g/mol А. 19.0 М В 248 М C. 2.85 M D. 18.60 M The molar mass of a compound is 180.16g/mol. Analysis of a sample of the compound indicates that it contains 53.29%0, 6.71%H and 40%ć. Find its empirical formula. а. С2НЗО6 b. CH2O с. СнО d. C2H302 The concentration of a 1500mL aqueous KCI solution was increased from 25.0 M to 80. M by evaporation. How much H20 was removed? MW: K=39g/mol, CI=35g/mol, H=1g/mol, 0=16g/mol A. 1.03 L B. 0.47 L C. 1968.75 mL D. 4.68.75 mL

Suppose that 15M of Naci solution with a volume of 15L is heated and loses 2000ml of water content. What would be the final concentration of your Nacl sample? MW: Na=23g/mol, CI=35g/mol, H=1g/mol, 0=16g/mol A. 0.0375 M В. 375.0 М C 3.75 M D. 37.5 M Barium chloride is reacted with sodium sulfate to produce barium sulfate and sodium chloride. How many moles of the precipitate is produced from 0.8 moles of Bac12? a. None of the above b. 0.4 mole C. 1.6 moles d. 0.8 mole A 315mL of water was added to 2100 mL of 19M NacI solution. What is the new concentration of the solution? MW: Na =23 g/mol, CI =35g/mol А. 19.0 М В 248 М C. 2.85 M D. 18.60 M The molar mass of a compound is 180.16g/mol. Analysis of a sample of the compound indicates that it contains 53.29%0, 6.71%H and 40%ć. Find its empirical formula. а. С2НЗО6 b. CH2O с. СнО d. C2H302 The concentration of a 1500mL aqueous KCI solution was increased from 25.0 M to 80. M by evaporation. How much H20 was removed? MW: K=39g/mol, CI=35g/mol, H=1g/mol, 0=16g/mol A. 1.03 L B. 0.47 L C. 1968.75 mL D. 4.68.75 mL

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter13: Solutions And Their Behavior

Section: Chapter Questions

Problem 57GQ: Dimethylglyoxime [DMG, (CH3CNOH)2] is used as a reagent to precipitate nickel ion. Assume that 53.0...

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