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Problem- 1) What is the purpose of washing your initial product (a solid) with aqueous sodium carbonate in Alkylation of Mesitylene.
Problem- 2) The crude product is recrystallized from a mixture of toluene and methanol. Do you expect your product to be more soluble in toluene or methanol? Briefly explain.
Problem- 3) What hazards are associated with formaldehyde? Answering this question will require looking beyond your lab manual
Separate your answers with a comma. Show the process and each step.
Given 867 mL of a buffer solution that is 0.532 M methylamine and 0.86 M methylammonium chloride, calculate the pH of this solution after the addition of 1.14 g sodium hydroxide. The Kb of methylamine is 4.4x10-4
NaCl is an electrolyte that commonly used to melt ice by lowering its melting point. what is the lowest possible melting point for ice that could be obtained considering the solubility of NaCl in water? The Kf for H2O is 1-86 degree C/m.
A compound contains 14.5 g of magnesium and 3.5 g of oxygen. What is the mass percent of oxygen in the compound?
how much must you perspire to maintain a constant body temperature assuming no other energy changes and all the calorie content of the soda is released as heat?
Draw lewis structure of NO3Cl include lone pairs of electrons, resonance structures and formal charges (minimized). The basic structure is O=N(-O)(-O-Cl). Where N is double bonded to one O and single bonded to two O atoms. Also, one of the O atoms..
A mixture of hydrochloric as well as sulfuric acids is prepared thus that it contains 0.635 M HCL and 0.465 M H2SO4. Explain what volume of 0.46 M NaOH would be needed to completely neutralize all of the acid in 376.8mL of this solution
Dinitrogen tetroxide (N2O4) dissociates via the reaction: N2O4 (g) ? 2NO2 (g). 3.00 × 10-2 mol N2O4 (g) is introduced into a 1.000L flask. At equilibrium, 2.36 × 10-2 mol N2O4 (g) remains. What is the equilibrium constant for this reaction?
If someone using one of those masks exhales 0.716 g of CO2/min, how many grams of potassium superoxide would be consumed in 12.00 minutes?
if 82.7874 grams of oxygen was given off during the decomposition, how many grams of KCIO3 were used?
An ore containing 24% solid inert and 76 mol% iron pyrites (FeS2) is roasted in the presence of dry air at 500 °C and 1 atm. Considering the given reactions.
In a carbonate buffer at pH 7.3; what species of carbonate form the buffer, What are the relative amounts, and does the buffer have a greater capacity to neutralize added acid or added base explain all.
At 21.0 C, a solution of 18.26 g of a nonvolatile, nonpolar compound in 33.25 g ethyl bromide, C2H5Br, has a vapor pressure of 336 torr. The vapor pressure of pure ethyl bromide at this temperature is 400 torr. What is the molecular mass of the co..
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