Be sure to answer all parts.These organic solvents are used to clean compact discs:SolventChloroformDiethyl etherEthanolIsopropanolToluene(a) If a 15.00-mL sample of CD cleaner weighs 22.380 g at 20°C, which solvent is most likely to bepresent?O ChloroformO Diethyl etherDensity (g/mL) at 20°C1.4920.7140.7890.7850.867EthanolIsopropanolToluene(b) The chemist analyzing the cleaner calibrates her equipment and finds that the pipet is accurate to+0.02 mL, and the balance is accurate to ± 0.003 g. Is this equipment precise enough to distinguishbetween toluene and chloroform?yesno

we were asked to determine if a chemist's equipment was precise enough to distinguish between two…

Solvent Chloroform Diethyl ether Ethanol Isopropanol Toluene Density (g/mL) at 20°C 1.492 0.714 0.789 0.785 0.867 (a) If a 15.00-mL sample of CD cleaner weighs 22.380 g at 20°C, which solvent is most likely to be present?

Solvent Chloroform Diethyl ether Ethanol Isopropanol Toluene Density (g/mL) at 20°C 1.492 0.714 0.789 0.785 0.867 (a) If a 15.00-mL sample of CD cleaner weighs 22.380 g at 20°C, which solvent is most likely to be present?

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

What is the absolute uncertainty and relative uncertainty of the molarity of the solution? M = = 0.078376462 = 0.078 M Pb2+
Hi plz q7
NaOH Concentration (M): 0.09669M Trial 1: Inital Volume of NaOH: 0.55mL Final Volume of NaOH: 28.25 mL Trail 2: Intial Volume of NaOH: 18.1 mL Final Volume of NaOH: 46.1 mL Concentration of HCl Solution Subtract the initial buret reading from the end point reading. Convert the readings to liters by dividing by 1000. Solve this equation for the concentration of HCl: (CHCl) (0.01000 liters ) = (CNaOH) (volume of NaOH in liters). CNaOH is the normality of the NaOH you recorded from the bottle. Average the two HCl concentrations.
SHOW COMPLETE SOLUTION AND BOX THE FINAL ANSWER.
Masses of compounds used and observations NaCI CuSO4-5H20 Bright blue crystaline solids (NH4)2Fe(SO4)2 pale, Blue-green crystalline solid colorless Crystals Appearance of solid Mass of vial and 12.8364 12.7398 12.9445 compound (g) Mass of emptied vial (g) 11.6023 11.4888 11.9221 Mass of compound used (g) 1.2341. 1.2510. 1.0224 Volume of prepared solution = Type response here. Mass of sodium chloride used = Type response here.
Using the calibration curve below (equation of the line: y=0.0039x + 0.9981) to determine the percentage of sugar in a sugar water solution with a density of 1.034 g/mL. Density versus Percent Sugar 1.07 1.06 y = 0.0039x + 0.9981 R² = 0.9998 1.05 1.04 1.03 1.02 1.01 1 0.99 6 8 10 12 14 16 Percent Sugar (% m/m ) 8.5% 1.0% 9.2% 4.2 % 9.9% Density (g/mL) 2.
Question 1
ATES OF MATTER Solving applied mass concentration problems GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect normal levels of dissolved triiodothyronine (230. to 660. pg/dL), using a blood sample that is as small as 150 µL. Calculate the minimum mass in picograms of triiodothyronine that the new system must be able to detect. Be sure your answer has the correct number of significant digits. Pg X 3/5 S
Part C: Determination of the alcohol content of unknown liquor: Volume (mL) Sample ТИШТИНА 0.00% alcohol 10.0% alcohol 20.0% alcohol 40.0% alcohol 50.0% alcohol Unknown Mass (g) 1o podina ko 9.8919 9.7899 9.600 9 9.420 д % Alcohol content of the liquor 9.2155 9.5089 2VLELA CVOLION EAEK EVI OK DRA IVBOKY LOBAN ocen 10.00 10.00 10.00 10.00 10.00 10.00 tiend Density (g/mL) 0.00% alcohol calculation: ися → о 0.99 во 0.99 Ino7 sm dole 120.00 supinubst sdi na LANG 411 be: [scordas: 0.97 0.94 in oil to notisalarisi 0.92 0.95
Questions 15 through 20 pertain to the following medication formula: Here is the formula a pain and inflammation reducing ointment. Methyl salicylate (sp gr = 1.167) 60 mL Lidocaine 4% (w/w) Tween:Span mix (1:4 mix) Polypeg Base 10 g QS to 0.5 kg You receive an order to make 3 solid ounces of this product. Answer the following questions pertaining to producing 3 solid ounces of the product. 15. Volume of methyl salicylate, in milliliters. 16. Weight of lidocaine in grams. 17. Weight of Tween in milligrams. 18. Weight of Span, in milligrams. 19. Weight of Polypeg base, in grams. 20. What is the final concentration of methyl salicylate, as a percent concentration (w/w)?
Analyze each statement (A and B) whether they are true or false. Use the choices below in answering each item; A statement A is true B statement B is true C both A and B are true D neither A nor B are true (A) A dispersing agent such as Na-hexametaphosphate is needed prior to soil textural analysis. (B) particles greater than 2.0 mm is included in the analysis of soil texture.
Answer 2a and b please