After settling, both layers are clear colourless liquids. How do you know which layer is the organ
Suppose that you have a reaction mixture which consists of 14.2 g of CsCl and 12.0 g of an interesting organic compound dissolved in 100 mL of water. You would like to have the pure organic compound, separate from water and salt, so you decide
Write one clear paragraph describing the success (or lack thereof) of your distillation. Based on a
Write one clear paragraph describing the success (or lack thereof) of your distillation. Based on all available experimental data (fraction volumes, boiling points, and corrected refractive indices), was your distillation successful in isolatin
Why is it necessary to reduce the rate of heating to ~1 to 2 °C per minute near the actual melting ...
Why is it necessary to reduce the rate of heating to ~1 to 2 °C per minute near the actual melting point? Explain what effect a faster rate of heating might have on the observed melting point range.
Discuss the yield and purity of your isolated product. How can you determine the Identity/purity o
Discuss the yield and purity of your isolated product. How can you determine the Identity/purity of the products? What factors contributed to poor yield/purity? If there were more time/resources, what could have been done to i
If you were to repeat this experiment using mixtures of hexane and acetone (in the same proportions)
If you were to repeat this experiment using mixtures of hexane and acetone (in the same proportions) as eluent (i.e. replaced the ethyl acetate with acetone) what effect would you predict this change would have on the Rf values for the analgesics?
Describe how TLC could be used to confirm whether a compound was pure or not. Were all of the standa
Describe how TLC could be used to confirm whether a compound was pure or not. Were all of the standard analgesic solutions provided for you in this experiment pure?
Let’s model the Earth’s magnetic field as resulting from a current loop inside the earth, in the ...
Let’s model the Earth’s magnetic field as resulting from a current loop inside the earth, in the plane of the equator. Specifically, assume the current loop has radius a = RE/2 and its center coincides with the center of the earth. Given
Astronauts on the first trip to Mars take along a pendulum that has a period on earth of 1.50s. The
Astronauts on the first trip to Mars take along a pendulum that has a period on earth of 1.50s. The period on Mars turns out to be 2.45 s. What is the acceleration due to gravity on Mars?
Hysteresis is the difference of the two readings (increasing and decreasing trends) of the same pressure. You can divide the difference by the average of the 2 readings to show the hysteresis as fraction of the pressure at a particular
Figure below shows a three-stage separation process. The ratio of P3/D3 is 3 the ratio of P2/D2 is 1
Figure below shows a three-stage separation process. The ratio of P3/D3 is 3 the ratio of P2/D2 is 1, and the ratio of A to B in stream P2 is 4 to 1. Calculate the composition and percent of each component in stream E.
Technician A says a wobble plate moves some compressors' pistons. Technician B...
Technician A says a wobble plate moves some compressors' pistons. Technician B says some swashplate compressors have double-ended pistons. Who is correct? a. Technician B only b. Technician A only c. Neither A
A beaker filled with an equimolar liquid mixture of ethyl alcohol and ethyl acetate evaporates
A beaker filled with an equimolar liquid mixture of ethyl alcohol and ethyl acetate evaporates ast 0oC into still air at 101kPa total pressure. Assuming Raoul's law apples, what will be the composition of the liquid remaining wh
A cereal is being dried in a vertical drier by air flowing countercurrent to the cereal. To prevent
A cereal is being dried in a vertical drier by air flowing countercurrent to the cereal. To prevent breakage of the cereal flakes, exit air from the drier is recycled. For W = 1000 kg/h of wet cereal fed to the drier, calculate the input of moist fre
Why did my roller luggage's wheels stop turning smoothly?
Two weeks ago, my carry on worked perfectly.But last week the detachable wheels stopped rotating smoothly, when I tried to glide my carry on. The wheels budge JUST A TAD when you push them hard, but it sh
CHE 318 A filter cake is extruded onto a screen in the form of cylinders 1/4 inch in diameter
A filter cake is extruded onto a screen in the form of cylinders 1/4 inch in diameter and 4 inches long. The dry solid density is 120 lb/ft3. The solid loading is 8 pound of dry solid per square foot of screen surface. The bed porosity is
Fluorspar (CAF2) is to be dried under constant-rate drying from 6 to 0.4% moisture (on dry basis)
Fluorspar (CAF2) is to be dried under constant-rate drying from 6 to 0.4% moisture (on dry basis) in a counter current adiabatic rotary dryer at a rate of 18000 lb/h of bone-dry solids. the heating air enters the dryer at 1000oF with a hum
The numerical equation from Qin Jiushao’s Shushu jiuzhang analyzed in...
20. The numerical equation from Qin Jiushao’s Shushu jiuzhang analyzed in Section 7.4.2 came from the geometrical problem of finding the area of a pointed field. If the sides and one diagonal are labelled as in Figure 7.22 (shown below)
An acronym sometimes used to describe the process of preparing for the creation of a ...
An acronym sometimes used to describe the process of preparing for the creation of a constraint-based model is TAP, representing the steps Think, Analyze, and Plan. Consider what it means to think, analyze, and plan a constraint-based model. Why are
Do private charter planes & Jets owned require a mandatory three digit or four digit flight number with a flight naming convention similar to Commercial ai
Benzene and toluene form an ideal liquid mixture. A mixture composed of 30 mol %benzene is used in a ...
Engineering – Chemical Process Safety question:
Benzene and toluene form an ideal liquid mixture. A mixture composed of 30mol %benzene is used in a chemical plant. The temperature is 80°F, and the pressure is 1 atm.
Transition from Left Hand drive to Right Hand Drive Car Vehicle
I would like to know the following information.
1 By Default, a Car Automobile is manufactured as Left hand or Right hand drive. In terms of engineering efforts, how easy or difficult is the transition from Left hand to Right hand drive an
You are given four additional polymeric materials (A, B, C, D) to examine for potential as a ...
You are given four additional polymeric materials (A, B, C, D) to examine for potential as a vascular graft material, and are told to use size-exclusion chromatography to determine the approximate molecular weights of the unknown poly
In a free market economy, people are free to manufacture buses out of gold, rather than steel. So wh
In a free market economy, people are free to manufacture buses out of gold, rather than steel. So why aren't buses made out of gold? A) Although it meets all economic laws, gold buses would violate the laws of physics and mechanical enginee
The pictures shown below are from an experiment in which osteoblasts (bone forming cells) were ...
The pictures shown below are from an experiment in which osteoblasts (bone forming cells) were cultured on a poly(ethylene glycol)-based hydrogel material with different concentrations of a covalently-linked RGD peptide sequence (desi
