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After simple distillation, could GC have been used to determine purity of the distillate (final compound)? If so, briefly and completely explain
An unknown element crystallizes in a body-center cubic crystal structure. The atomic radius of the substance is 2.532 Å and its density is 1.208 g/cm3.
what is ture when equal masses of a and b are reacted?
What is the mass of a single weight (assume one step work) you need to put on a bike pump to take the air in the pump from 1 atmosphere to 9 atmospheres?
A student wants to make a pH 4.0 buffer solution. She decides to use a buffer made from formic acid and sodium formate (NaCOOH).
A nugget of pure gold of 4.80 grams is absorbed 284 Joules of heat. if the initial temperature was twenty eight degree Celsius then what was the final temperature of the Au? The specific heat of gold = 0.129 J/(g·°C)?
Enough of a monoprotic acid is dissolved in water to produce a 0.0189 M solution. The pH of the resulting solution is 6.25. Calculate the Ka for the acid.
Using the standard values for the fundamental charge and the mass of the proton and neutron, what is the charge to mass ratio of the 5He nucleus, in Coulombs per gram?
Calculate the mass of PbCl2 that will dissolve in 50 mL of water if the solubility product constant is 1.61*10^-5?
The Eriochrome Black T indicator is mistakenly omitted. what is the color of the analyte (standard Ca^2+ solution)? Describe the appearance of the analyte with the continued addition of the Na^2H^2Y solution? Explain?
Determine the percent yield for the reaction between 3.74g of Na and excess O2 if 5.35g of Na2O2 is recovered
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
Find the mass of AlCl3 that is produced when 25.Og of Al2O3 react with HCl according to following equation Al2O3+6HCl-
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