Intro copy - SethRauscher

I need help on questions 2-4?

Procedure it attached below, but question is in the screenshot.   Part A: Solution Preparation Work in pairs.  Wear safety goggles and an apron.  Connect the temperature probe to Channel 1 of the LabQuest2. The vertical axis has temperature scaled from 0 to 50°C.  To set the horizontal axis (time) to 0 to 1000 seconds, go to the  menu and change the Duration to 1000 seconds. Wear gloves for this step only, 2.5 M acid can cause burns.  When diluting concentrated acid, pour acid into water, slowly with stirring; never the reverse. HAVE A DILUTION PLAN BEFORE COMING TO LAB.  (Use the concentration values and volume below in the dilution equation to find the volume of stock solution needed to create the dilute solution.)  Using only volumetric glassware, prepare 250.00 mL of approximately 1.0 M HCl solution from the stock HCl solution in the hood (approximately 2.5 M).  The exact concentration for the stock solution must be recorded from the bottle’s label and the exact concentration for…

Please answer the following question about a lab experiment about synthesizing aspirin. The procedure for this experiment is included in the photos.   What characterization could you do in a future lab to show you no longer have salicylic acid?

Hello, I need help on questions 5 and 6? if you can answer all of them? I gave you a data table and questions you can go ahead with. The mass of NaCI is 12 grams

Please help do the brown sugar and white sugar separately

4. Often we will ask that you scale your procedure up or down, meaning we will change the amounts of material we will use. The following is a procedure as written in an organic lab experiment. Write the procedure out as if you were asked to scale up by a factor of 2. Make any necessary changes to equipment sizes, reaction times, etc. Remember that you should never heat a reaction vessel that is more than ½ full. "In a 50 mL round-bottom flask place 2 grams of compound X and 15 mL of benzene. Reflux the reaction for 30 minutes. After the reaction has cooled, add 10 mL of ice-cold water. Collect the product by vacuum filtration and wash it with two 10 mL portions of ice-cold water."

What is a good way to test for losses during your procedure? Change all parameters during the procedure to see if more product is recovered Try a different procedure to see if the same amount of analyte is recovered Run procedure with known amount of analyte to see how much is recovered Run procedure for an unrelated analyte Run procedure with 3 analytes simultaneously

Pls answer 2,3 & 4

please skip this if you have already answered. I will upvote if it is correct and complete. thank you

I need help with my homework

PART 3- LABORATORY EQUIPMENT EQUIPMENT NAME FUNCTION To hold test tubes. Attaches to a retort stand to support glassware being heated. To pour liquid from a large container into a small container. To provide a flame during an experiment. ones To light the Bunsen burner. To attach test tubes to a retort stand. To clean substances out of a test tube. To hold a hot crucible or flask. To hold a hot test tube. To place on the lab bench to prevent burning or to use with ring clamp. To transfer small amounts of liquid. To grow bacteria or contain small experiments. To hold liquids. To measure liquids. To contain experiments (a stopper can be used to close the flask). To hold a hot beaker. To perform an experiment with a different substance in each well. To hold chemicals and perform experiments in. To scoop and transfer small amounts of substances, To stir during experiments that involve mixing or dissolving.

Review | Constants I Peri The melting point of dibromomethane is -53°C and its boiling point is 97° C. Sketch a heating curve for dibromomethane from -100°C to 120°C.

. Be sure to understand what the dilutionfactor is for each sample (dilution factor = the number used to determine the actualconcentration of the stock UK after the diluted samples are analyzed) ?

1 and 2 answers?

Use the dropdown menus to indicate whether a solvent pair could be used successfully in a mixed-solvent recrystallization. a-hexanes and water [ Select successful or unsuccessful ] b-chloroform and diethyl ether [ Select successful or unsuccessful ] c-acetone and methanol [ Select successful or unsuccessful ]

Need help answering these three questions

Part D One of these liquids is used as a "blowing agent" in the manufacture of polystyrene foam because it is so volatile. Which liquid would you expect to be used as a blowing agent? Match the words in the left column to the appropriate blanks in the sentences on the right. Reset Help Pentane is used as the "blowing agent" because it has a boiling point and is Ethylene glycol volatile low high Submit Request Answer < Return to Assignment Provide Feedback 6:16 PM O 4) 12/12/2021 amazon B. Mastering. Spotify Free 65°F

read the Procedure and answer the post lab questions below: Using a balance, mass between 1.50 – 2.00 grams of sodium carbonate in a pre-massed 150mL beaker. Add 20 mL of distilled water and stir thoroughly to make sure all the crystals are dissolved. Rinse the stirring rod with a little distilled water after stirring. Using a balance, mass between 1.50 – 2.00 grams of calcium chloride dihydrate in a pre-massed 50 mL beaker. Repeat Step 2 for the solution in the 50 mL beaker. Pour the calcium chloride solution into the 150mL beaker containing the sodium carbonate solution and stir. Mass a piece of filter paper. Fold the filter paper and place it into the funnel. Wet it with a little distilled water to ensure that it is stuck to the sides of the funnel. Slowly pour the mixture from the beaker into the funnel and collect the filtrate into a 125mL erlenmeyer flask. Do not allow the mixture to rise above the edge of the filter paper. Rinse the beaker with about 10 mL of distilled water.…

read the Procedure and answer the post lab questions below: Using a balance, mass between 1.50 – 2.00 grams of sodium carbonate in a pre-massed 150mL beaker. Add 20 mL of distilled water and stir thoroughly to make sure all the crystals are dissolved. Rinse the stirring rod with a little distilled water after stirring. Using a balance, mass between 1.50 – 2.00 grams of calcium chloride dihydrate in a pre-massed 50 mL beaker. Repeat Step 2 for the solution in the 50 mL beaker. Pour the calcium chloride solution into the 150mL beaker containing the sodium carbonate solution and stir. Mass a piece of filter paper. Fold the filter paper and place it into the funnel. Wet it with a little distilled water to ensure that it is stuck to the sides of the funnel. Slowly pour the mixture from the beaker into the funnel and collect the filtrate into a 125mL erlenmeyer flask. Do not allow the mixture to rise above the edge of the filter paper. Rinse the beaker with about 10 mL of distilled water.…

Q3. Give four factors that determine the suitability of drying agent in drying organic liquids

please help with all answers, attached as 2 screenshots.