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Which mixture, 1 (a mixture of benzene toluene and p-xylene) or 2 (a mixture of o-,m-, and p-xylene, and ethyl benzene) gave better separation on the Gas Chromography and why?
If iron is oxidized to Fe2+ by a copper(II) sulfate solution, and 0.704 grams of iron and 12.6 mL of 0.581M copper(II) sulfate react to form as much product as possible,
how much current is produced by the dissolution of .525 g of chromium per hour to produce chromium (III)?
You have 200ml of a solution which is 0.2M NH3 and contains 0.23grams of NH4Cl. a. What type solution is it? b. What is the pH of the solution
If 1.00 g of Ca2+ dissolved in 420 mL of water reacts stoichiometrically according to the balanced equation in a reaction solution with a total volume of 1680 mL, what is the molarity (M) of Na+ produced?
Provide a structure for the following compound: EI mass spectrum: two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm-1; 1H NMR
1. Find the pH of a solution that has a concentration of hydrochloric acid equal to 0.001 M. 2. Find the normal pH of rainfall (not acid rain). Would a rain sample with a pH of 5.0 be considered "acid rain"
A material contains a high concentration of BaO and Al2O3. If its composition were changed to reduce the BaO concentration, and increase the SiO2 concentration. Would viscosity at some given temperature be higher or lower with the new concentratio..
how many grams of water can be cooled from 33 to 20 by the evaporation of 37 of water? the heat of vaporization of
A mixture of 10.0g of Ne and 10 g Ar have a total pressure of 1.6atm. What is the partial pressure of Ne
How much heat energy, in kilojoules, is required to convert 61.0 g of ice at -18.0 C to water at 25.0 C ?
A 125.0ml contains a gas at 27 degrees Celsius and 760mmHg of pressure. the gas is pumped into an empty 1.50L flask also at a temperature of 27 degrees Celsius. What is the pressure ( in atm) of the gas in the new flask.
A gas mixture is made by combining 8.0g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 18.08L. What is the molar mass of the unknown gas
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