Diffusion - Diffusion Across a Selectively Permeable Membrane

1. Component Container Stretch Wrap Pallet Product Material Polypropylene Polystyrene Wood Ca(OCI)2 Weight (kg/pallet) 48 0.5 15-18 725 Based on the above table, answer the following questions. (a) Discuss the possibility of fire at the calcium hypochlorite Ca(OCI)2 storage warehouse. Include your assumption on how the fire could spread in the storage warehouse. (b) Recommend solutions to avoid fire occur at the storage warehouse. (10) (10) (Total / Jumlah: 20 )

An oil sample had its iodine number determined using the pyridinium tribromide method. The sample and reagents used are as follows: Oil sample: 0.19 mL, density: 0.954 g/mL Pyridinium tribromide: 0.472 g Na2S203: 0.1 M, endpoint 27.68 mL %3D What is the approximate Bromine Number? O 138 89 O 120 O 200

When purifying a sample of aspirin that was produced in the lab, the impure aspirin sample should be dissolved in a very cold solvent, so that solid impurities can be filtered and analyzed the next day or the next week. True or False?

Hello, the priority to be answered would be page 1 (1st image). However, I can put part 2 (2nd image) on a new question/post. Just wanted to include that in this post for reference to whoever will answer it. Thank you!

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. 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) ?

Soil Lab 11a Direct Measurement of Soil Porosity 1. Fill a 100 ml graduated cylinder to the 100 ml mark with tap water. Tilt the beaker containing the soil sąved from Step 3 in the Bulk Density Determination to about a 45 degree angle. Pour the water very slowly onto the soil in the beaker. Stop adding water when the soil pores are filled (saturated) and the soil surface glistens. 2. Allow the soil to stand for several minutes to make sure the water has filled the very small soil pores. Any excess water can be returned to the graduated cylinder. Don't stir or shake the mixture. 3. Determine the amouht of water used to exactly fill the pote space in the 100 cubic cehtimeters of soil. Subtrąct the reading of water level on the side of the graduated cylinder from the original volume of 100 ml. Note that the water which was poured onto the soil exactly filled the pore space and thus equals the total pore volume by direct measurement. 4. Record your results below and make the necessary…

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.

calculate the mass of the distillate_______________ and the density of the distillate.  use the rules of significant figures include units    trail 1   mass of empty graduate cylinder, gm  5.280 grams volume of distillate, ml  3.01 ml mass of cylinder with the distillate, g  7.936 g boiling point of the distillate, C degree 92.1