Experiment 3 Freezing Point Depression

Please choose correct answer

The amount of caffeine was influenced by the temperature of water used to brew, and the time of brewing. The concentration of caffeine is dependent on the volume of water used for brewing.      Both statements are correct.     1st statement is True. 2nd statement is False.     1st statement is False. 2nd statement is True.     Both statements are False.

B Solutions Review Quiz - CHM11 X 101 Chem101 app.101edu.co K Question 3 of 29 Submit Which of the following best describes what takes place during the solvation process? A) Molecules of the solute are attracted to one another more than the solvent. B) Solvent molecules surround solute molecules and pull them out into the solution. C) Molecules of the solvent are attracted to one another and exclude solute molecules. D) Solvent and solute molecules arrange themselves along a boundary. + ...

I need help with 5 and 6.    The initial temperature for all 3 solutions was 0.9 degrees C.

SHORT ANSWER. For the next 7 questions, 31 to 37, develop the answers concisely, show formulas, values with units, results with units, and correct number of significant figures. The freezing point of ethanol (CH,OH) is -114.6 °C. The molal freezing point depression constant for ethanol is 2.00 °C/m. What is the freezing point ("C) of a solution prepared by dissolving 80.0g of glycerin (C3HgO3 a nonelectrolyte) in 200.0 g of ethanol? BIYA A-IEE x x, = E E- 2 V T 1 12pt Paragraph

Compute the boiling point elevation of a salt water solution that contains 4.10 g of NaCl dissolved in 190 mL of water. Enter the number of degrees celsius that the boiling point will be elevated. 0.188 Submit Answer You have entered that answer before Incorrect. Tries 6/99 Previous Tries

PLEASE ANSWER WITH DETAIL EXPLANATION CORRECTLY DO NOT COPY FROM OTHER SITE

sq An aqueous solution of a nonionic (that is, nonelectrolyte) solute has a freezing point of -0.293 °C. The solution contains 1.94 g solute dissolved in 78.9 g H₂O. What is the molar mass of the solute? Submit Submit Answer g/mol Show Approach Show Tutor Steps Retry Entire Group 9 more group attempts remaining Cengage Learning Cengage Technical Support Previous Next> Save and Exit

2 8 Determine the Gas Densities of the following. Please show the step by step solution or it will be a wrong answer. Help me please

Help with the following question Round the answer to 2 sig figs

2 4 Determine the Gas Densities of the following. Please show the step by step solution or it will be a wrong answer. Help me please

Help

please do both very easy ...if u plan to do only 1 then skip..do both plz

Tabulated Data:                                                    Trial I                                     Trial II Final reading HCl                        26. 40 mL                            27.10 mL Initial reading HCl                       1.2 mL                               1.8 mL Volume of HCl used ?  Final reading NaOH                  33.7 mL                                32.8 mL Initial reading NaOH                0.8 mL                                   0.5 mL Volume of NaOH used ? ? Calculations and solutions: Normality of NaOH : 0.25 N Solve for the average Normality of HCl : ? Calculations and solutions: Trial I. NHCl = Trial II. NHCl = Average NHCL =

Pls answer number 14 and 15 with solution

2 6 Determine the Gas Densities of the following. Please show the step by step solution or it will be a wrong answer. Help me please

Pls help ASAP ON ALL ASKED QUESTIONS PLS PLS

find the following

2 3 Determine the Gas Densities of the following. Please show the step by step solution or it will be a wrong answer. Help me please

Help please use sig figs

ne > My courses > 1802 > Topic 1 Final Exam What is the molality of NaCl in a solution that is 2.5 M NaCl, with a density of 1.02 g/mL? formual mass of NaCl = 58.5 g/mol of PREVIOUS ACTIVITY second exam Type here to search

Feedback MISSED THIS? Watch KCV: Colligative Properties, IWE: Boiling Point Elevation; Read Section 14.6. You can click on the Review link to access the section in your e Text. An ethylene glycol solution contains 33.1 g of ethylene glycol (C₂H6O2) in 93.4 mL of water. (Assume a density of 1.00 g/mL for water.) < Previous ASUS

Chemistry Assessment 1. Equal numbers of moles of two soluble substances; A & B, are dissolved into 1 L of water separately. Explain the following: a) The Water samples are cooled down. Solution A freezes at -0.5°C and B at -1°C. How these solutions can have different freezing points? b) Compare the freezing point of 500 mL of solution B with the 1 L of solution A. c) Calculate the molality of the solution A & B assuming i=1 for substance A. d) Describe the change of freezing point if you add 1 Kg of water into solution B. e) What would be the concentrations of A & B if they have the freezing point of -0.05°C? f) Compare the all-other colligative properties of the original solutions of A & B. 2. Ammonium hydrogen sulfide, NH,HS, is unstable at room temperature and decomposes: NH,HS(s) + NH3(3) + H2S(3) If you place some solid Ammonium hydrogen sulfide in the closed flask, in which of the following case it will produce less hydrogen sulfide gas- a) Removing some ammonia b) Adding some…