Question: please help i got these three wrong and im not sure why. thank you! 4. (1 pt) Which one is not the property of a

please help i got these three wrong and im not sure why. thank you!

4. (1 pt) Which one is not the property of a desirable recrystallization solvent? (a) dissolve all of the compound at or below the boiling point of the solvent (b) be reactive with the compound (c) have a boiling point below the melting point of the compound (d) does not dissolve all of the compound when the solvent is at room temperature 5. (1 pt) Your lab partner weighs out samples of caffeine and resorcinol on the balance, but accidently combines them in the same vial. What technique do you need to perform to isolate the complete pure samples of each compound from this mixture? Indicate all that apply. (a) Gas chromatography x (b) Column Chromatography X (c) Thin Layer Chromatographyx (a) Simple Distillation (e) Abbe refractometer reading x 6. (2 pts) Which statement(s) is/are correct regarding simple distillation? Indicate all that apply. (a) A spin vane is not needed, because your vial is attached to the Hickman still. (b) Compoun (d) It is important to belle first. (c) Fill distillation vial less than 2/3 s full to assure that liguid to assure complete distillation your collected liquid. (f) While heating, make sure all openings are sealed

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Chemistry Questions!

I need help on the Boulder Public School Case Study . There are three questions asked at the end of the case study. HBSP Product Number TCG239. Rev. Oct. 2015 THE CRIMSON PRESS CURRICULUM CENTER THE...

Case Study of Ritz-Carlton 4. In what may be a first for the hospitality industry, Brian Collins, hotel owner, has asked James McBride, Ritz-Carlton general manager, to lengthen the amount of time...

Problem Solving and Decision-Making Introduction The Board of Directors of Bright Road Health Care System is considering which electronic health record (EHR) system to use and how to implement the...

Please read the question Question: On pages 5 and 6 the authors write, "Narrative provides not only meaning but also a mental framework for imbuing future experiences and information with meaning, in...

Can I get assistance in describing the two different Landlord and Tenant Scenarios below, providing as much detail for my better understanding using the LTB website for referencing as well. This will...

Below is a case study of a company. Please answer properly using the guidelines mentioned and from a prespective of management. The case study and questions are given below The Georges Hotel is a...

You should construct a decision tree that includes one decision node (purchase a new EHR system) or maintain the status quo (retain the existing EHR system). There are the two EHR systems under...

Qualitative: Data Collection and Analysis Assignment 120% Instructions/Writing Prompts Using the interview transcript given, complete the tasks as follow: TASKS: 1. Setting up new project. 2. Create...

THIS IS FOR POLICE PREPARATION CLASS: THIS IS A PRESENTATION TRANSCRIPT: They kind of led me in the direction of We Are public helpers it's what time someone told me so just being able and showing...

I only need Question 5 answered. Thank you Question 5 is Alternatively, assume you are an employee of a local accounting firm that has been hired by Oak City to provide expert testimony in the case....

(a) Calculate the energy needed to compress three carbon-carbon single bonds and stretch three carbon-carbon double bonds to the benzene bond length 1.397 . Assume a harmonicoscillator...

Find the general solution of the following homogenous differential equations. (Use Linear Equations with Constant Coefficients) 1. D2-6D +9)y 0 2. (4D3 + 4D + D)y = 0 3. (D* + 6D3 + 9D)y = 0 %3D 4....

Please check which business decisions would likely be affected by tax laws. Where should a business locate?

Questions Q1. Write a Python program to retrieve the first and last colors from the following list: color_list = ["red", "green", "white", "blue", "black") Q2. Given the following dictionary,...

3. An additional unit of Old Product X will bring Cindy an MU of 15 utils, an additional unit of New Product Y will bring Cindy an MU of 30 utils, and an additional unit of New Product Z will bring...

4. The inverted-U theory suggests that R&D expenditures as a percentage of sales ____________ with industry concentration after the four-firm concentration ratio exceeds about 50 percent. LO15.6 a....

9-22. A special request to the company president to allow managers to carry over their unused vacation days to the following year. Apparently, many managers cancelled their fourth-quarter vacation...