cheesus

Listed below are solubility vs. temperature data for an organic substance A dissolved in water.

Temperature (°C) Solubility of A in 100 mL of Water (g)

0 1.5

20 3.0

40 6.5

60 11.0

80 17.0

b) Suppose 0.1 g of A and 1.0mL of water were mixed and heated to 80°C. Would all the substance A dissolve?

(I wrote yes for this answer.)

‎(c) The solution prepared in (b) is cooled. At what temperature will crystals of A appear?

‎(d) Suppose the cooling described in (c) were continued to 0°C. How many grams of A would come

‎out of solution? Explain how you obtained your answer.

The specific rotation of pure (-)-2-butanol is -13.5°. What % of a mixture of the two enantiomeric forms is the. (+)-form if the specific rotation of this mixture is +7.0°?

A machine that produces ball bearings has initially been set so that the true average diameter of the bearings it produces is 0.500 in. A bearing is acceptable if its diameter is within 0.005 in. of this target value. Suppose, however, that the setting has changed during the course of production, so that the distribution of the diameters produced is well approximated by a normal distribution with mean 0.499 in. and standard deviation 0.002 in. What percentage of the bearings produced will not be acceptable? (Give the answer to four decimal places.)

Let z denote a random variable having a normal distribution with μ = 0 and σ = 1. What's the probability that P(z < -1.5 or z > 2.50)? (Use 5 decimal places.)

(1/y)=(1/x)-(1/2x)

I have to do a still-life and this is the assignment. I'm at a loss for ideas.

How would the rate law change if you decreased the amount of Mg?

I'm a firm believer in evolution and this guy from my biology class is perpetually sending me emails in which he "refutes" the theory of evolution.

For example.. does it mean the individual has received a vaccination? Does it mean he/she has been infected previously? Can they get the virus again?

*mammalian

Oops.

The context: "The most important of these is the maintenance of vascular integrity by the constitutive release of proangiogenic cytokines and growth factors (which we are calling trophogens) from platelets."

What's the difference between reproductive cloning and therapeutic cloning?

"Find a sequence in a film in which information is given to the audience ONLY visually. (Not through dialogue.) What kind of information is given, (data, metaphor etc.); how is it relayed to the audience; how does it relate (or how is it necessary) to the rest of film."

And tell me briefly why I should choose this particular scene and, obviously, what movie it's from.

I'd like some more information on how neural pathways are affected by this.

Group classes, preferably.