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Type: Posts; User: Dr.Jim
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Sorry! Anhydrous means "not a water solution". A water solution is easy. Just dissolve Fe metal in 6M hydrochloric acid. The only way is by direct oxidation. Fe metal + Cl2 gas. This was a...
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If this is from an organic chemistry course, then you should have learned about organic acids and bases before you learned about aldehydes and ketones. If this is from a biology or nursing chem...
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Your topic is in the wrong area. Nuclear fission is physics, not chemistry.
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Nice try, but no cigar. An aqueous solution of FeCl3 heated to dryness produces the hydrate. Further heating will decompose the hydrate back to Fe2O3 and HCl. Cannot get anhydrous FeCl3 by heating...
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Because aldehydes and ketones are neither acidic nor basic.
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Any valid scientific observation must follow the scientific method. That is, no theory developed from a scientific observation is valid unless tested to give results consistent with the theory in...
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Split the nucleus of an atom.
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You just answered your own question. I did not say that the change in velocity from +1 mph to -50 mph was instantaneous. I said that in the limit that t goes to zero, the change in their position...
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That is "what is wrong with the picture" that I asked in the original problem. The mosquito is traveling at 1 mph (+x direction) before it hits the train and at 50 mph (-x direction) after the...
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There is no paradox here, and no laws of physics are violated. It requires an understanding of the difference between a finite change and an infinitesimally small change. We normally think of...
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Okey everyone. I'll give you once last hint. First, it's not a physics problem, it's more a calculus problem. This should give it away. It has to do with velocity being a change in distance with...
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You are missing the point. At some point the bug's velocity is zero. It is in contact with the train. Isn't the train's velocity also zero?
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Let's assume the train is in a vacuum. It doesn't change the problem.
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I'll give you a hint. It has to do with infinitesimals.
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I think that the bug will feel differently as it splats against the train. It's about as coupled to the train as you can get! Velocity is a vector. The bug's velocity goes from +1 mph to -50 mph,...
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A train is traveling in the -x direction at 50 mph. A mosquito is traveling in the +x direction heading straight for the train at 1 mph. The mosquito strikes the train. During the collision the...
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The program here is not very good. That squirrelly notation (it looks like an a and a dagger) before (mv) etc. is supposed to be a delta. The equation is m(proton) delta v (proton) = m(particle)...
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This is a classic billiard ball collision. Newton's law: for every action there is an equal and opposite reaction. Force is the change in momentum with respect to time. The force of the proton...
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pH=-log(H+) (base 10 log)
pOH = -log(OH-)
pH + pOH = 14.00
Find the concentration of LiOH in moles/liter. Since LiOH is a strong base, this also will be the concentration of OH-. Find the pOH...
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