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What would happen to the % Transmittance value if the wavelegth is changed from 447nm to 520 nm?
Identify the strongest attractive forces between molecules of each of the following: a) O2; b) SiH4; c) CH3Cl; d) H2O2; e) Ne
The density of helium is .01784g/l at S.T.P. I a given mass of helium at S.T.P is allowed to expand to 1.500 times its inital volume bu changing the temperature and pressure,
A certain instrument has a has a standard deviation of 1.7280%. How many replicate measurements are necessary if the standard error mean is to be 0.0210%
What are the effects of temperature, molarity, surface area, nature of the reactants, and the presence of a catalyst on the reaction rate of Zn(s)+2HCl(aq)-> ZnCl2(aq)+ H2(g)
a 31 l tank contains a gas under a pressure of 617 atm. what volume would the gas occupy at the same temperature at 900
Brass is a copper and zinc alloy containing 31.8% zinc by mass and having a density of 8.73 {\rm \frac{g}{cm^3}}. A fitting composed of common brass has a total volume of 335.6 {\rm cm^3}
An unknown metal hypochlorite salt, M(ClO)2, is subjected to analysis by iodometric titration: the salt is dissolved in dilute sulfuric acid, treated with excess aqueous KI, and then titrated with Na2S2O2 in the same manner as in your experiment
How would you determine the dS and dH for Cu2+ binding soil given K (distance) values at two different temperatures
1.20g sample of water is injected into an evacuated 3.00l flask at 45.0c. what percentage of the water will be vapor
Calculate the concentrations of H3O+ and the pH of each acidic solution. Since HCl is a monoprotic acid (an acid that donates only one proton or hydrogen atom permolecule to an aqueous solution), the H3O+ concentration is equivalent to the HCl mol..
Explain the order of elution you observed while performing the gas chromatography for this experiment. What property of the product molecules seems most important in determining relative retention times?
What is the new boiling point point of water if you add 188 grams of magnesium chloride to 1250 g of water.
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