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One of the most common causes of inaccurate melting points is too rapid heating of the melting point bath. Under these circumstance, how will the observed melting point compare to the true melting point?
The solubility of a gas in water is 0.22 g/L at 20 kPa of pressure. What is the solubility when the pressure is increased to 115 kPa
nitrobenzenesulfonic acid starting from benzene and using any needed organic/inorganic reagents.
To determine the concentration of a 25.0 mL acetic acid solution (Ka for acetic acid is 1.8 x 10-5), 25.0 mL of 0.200 M NaOH solution is used to reach the endpoint of titration. Calculate the pH of the endpoint.
A volume of 18.0 L contains a mixture of 0.250 mols N2 , 0.250 mols O2 , and an unknown quantity of He. The temperature of the mixture is 0 degrees C , and the total pressure is 1.00 atm.
Are we concerned with the amount of sample that we use in this experiment and list at least three pros and cons for using a small sample under 0.05g and a large sample over 2.0g
How many grams of hydrogen gas are formed when 399.5 mL of 8.37 M HCl is used in the following reaction: Mg(s) + 2 HCl(aq) ? MgCl2(aq) + H2(g)
describe the location of the carbon electrons. the answer is 3 unpaired electrons in sp2 orbitals and one unpaired electron in a 2p orbital
Consider the oxidation of gold metal in a mixture of nitric and hydrochloric acids (aqua regia) to produce AuCl4^-(aq) while nitrate ion is reduced to NO(g).
Suppose you inserted a piece of copper into a solution of nickel chloride and observed no reaction. Then if you inserted a piece of iron into the solution of nickel chloride a nickel deposit formed on the bottom of the well in the well plate.
Photochemical chlorination of 2,2,4-trimethylpentane gives four isomeric monochlorides. Write the structural formulas for these for isomers. 1. Isomer with a primary chloride and the methyls at the lowest numbering
Find the true mass (mtrue) of pentane when the mass weighed in air is 13.540 g. Assume the air density is 0.0012 g/mL and the balance weight density is 8.5 g/mL.
what is the minimum number of moles of sodium hydroxide required of this hydrolysis reaction to go to completion and what is the limiting reagent in this experiment?
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