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Provide analysis of the IR spectrum in terms of product absorbances and similarities/differences from the IR spectra of 4-iodophenol and phenylboronic acid.
When 24.0 g of glucose (a nonelectrolyte) are dissolved in 500. g of water, the solution has a freezing point of -0.47°C. What is the molar mass of glucose? Kf of water is 1.86°C/m.
The concentration of the alkane C20H42 (FM 282.55) in a particular sample of rainwater is 0.2 ppb. Assume that the density of rainwater is close to 1.00 g/mL
A compound contains only nitrogen and hydrogen and is 87.4% nitrogen by mass. A gaseous sample of the compound has a density of 0.925 g/L at 690 torr and 110 C.
Briefly explain how a lake with a limestone bed is more resistant to pH changes than a lake with a granite bed
consider the reaction CO2+H2=CO+H2O.The equilibrium concentrations are [CO]= 0.050M, [H2]=0.045M, [CO2]=0.086M, and [H2O]= 0.040M. Calculate K .
What is the chemical formula for a compound containing half as many barium atoms as iodine atoms?
1.628 G Sample Of A Hydrate Of Magnesium Iodide Is Heated Until Its Mass Is Reduced To 1.072 G And All Water Has Been Removed. What Is The Formula Of The Hydrate?
Add electron dots and charges as necessary to show the reaction of potassium and bromine to form an ionic compound.
What is the new HPO4^2-/H2PO4- ratio and new pH of solution? The pKa of H2PO4- is 6.64. Use henderson-hasselbach. C) Now take a fresh 60mL of the 0.50M pH of 6.83 buffer and add 3.7mL of 1.00M NaOH. Caclulate the new pH of the solution.
Predict that it was dissolved in HCl then mixed into the diethyl ether because diethyl ether is a base and since the benzoate contains an amine group they would remain unreactive with one another.
What is the minimum volume of 7.0M HCl required to completely dissolve 14.0 grams of magnesium metal?
Determine the molar mass of carbon dioxide by measuring the mass of an Erlenmeyer flask full of the gas. The following calculations are intended to familiarize you with the general procedure:
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