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The metal brass is really a solution of what two elements?
1. tin and lead
2. tin and copper
3. tin and zinc
4. copper and zinc
5. copper and lead
In the lower troposphere, ozone is one of the components of photochemical smog. It is generated in air when nitrogen dioxide, formed by the oxidation of nitrogen monoxide from car exhaust, reacts by the following mechanism.
Where do i draw the line between a good leaving group and an excellent leaving group(sn1)? Do i draw the line for a excellent leaving group at all halides
How many moles of N2 are produced by the decomposition of 1.80 mol of NaN3?
25ml of unknown amount of Cl- is treated with 40ml of .3650M AgNO3. Precipitate (agCl, kip: 1.80x10^-10) is filtered off and the filtrate was Tiresias 0.2870M KSCN. when 37.60ml of KSCN Is added to filtrate it turns red. How many micrograms of Cl-..
What are the spectator ions in the solution after completely precipitating an insoluble hydroxide compound when mixing KOH (aq) and FeCl2 (aq)
If the initial concentration of AB is 0.210M , and the reaction mixture initially contains no products, what are the concentrations of A and B after 80s ?
A student has been asked to titrate an HCl solution with a concentration of 0.35 M against an unknown concentration of NaOH solution. He found that he used 24.35 ml of HCl in order to neutralize 36.44ml of NaOH.
Chemical-plant equipment costs rarely vary in proportion to size. In the simplest case, cost C varies with size S according to the allometric equation 18 Chemical Engineering Thermodynamics C = ?S?
A hydrogen atom in an excited state emits a photon of frequency ? = 2.924 x 1015 s-1. If the electron returns to the ground state, in which level was it before the photon was emitted
The person selling the coin priced it at $200, claiming it was pure gold. Being a well-equipped traveler and a chemist, the professor produced his graduated cylinder and electronic balance. The coin had a mass of 18.82 g and raised the water level..
an aqueous solution contains the amino acid glycine (NH2CH2COOH). Assuming that the acid does not ionize in water, calculate the molarity of the solution if it freezes at -2.7 Degree celsius
What volume of 5.00x10^-3 M HNO3 is needed to titrate 80.00 mL of 5.00x10^-3 Ca(OH)2 to the equivalence point
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