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Calculate the number of moles of ethanol, (C2H6O) in 250.0 mL sample. Ethanol has a density of 0.76 g/mL.
calculate the IHD and select all the types of unsaturation that might be present in the molecule based on the IHD.
Calculate the vapor pressure lowering associated with the dissolving of 35.5 grams of sugar (C12H22O12, MM=343g/mol), in 400 grams of water at 25 degrees C. Ph2o @ 25 degrees=18.6 mmhg
What is the density (in g/L) of a mixture of equal numbers of moles of N2 and CO2 gas in a 8.00 L container at 298K if the pressure exerted is 19.0 atm
Calculate the energy change, in J, for 1 gmol of H2O 1) 0 to 100km/h 2) 0 to 100m 3) at 100'C from 0.1 bar to 1 bar 4) at 5bar from 0 to 100'C 5) Dissociating to H2 and O2 at 25'C
Consider the reaction 2SO2(g)+O2(g) 2SO3(g). a) write the equilibrium constant expression for Kc. b) what is the Kc for the reaction if at equilibrium the concentrations are [SO2]=.10 M, [O2]=.12 M,and [SO3]=.60 M
compute the volume of the tank if this tank has 115 moles ofnbsp neon gas and has a pressure of 57 atm at a temperature
Calculate the pH of a solution formed by mixing 65 mL of 0.30 M NaHCO3 with 75 mL of 0.30 M Na2CO3
Write a balanced molecular equation for these ten combinations.
What was the purpose of using aq. NaOH in aldol condensation lab? A. It acts as an electrophile on which an enolate ion can attack B. It acts as a nucleophile which can attack an electrophilic carbonyl carbon.
In photography, unexposed silver bromide is removed from film by soaking the film in a solution of sodium thiosulfate, Na2S2O3. Silver ion forms a soluble complex with thiosulfate ion
Calculate the pressure of a helium sample at -207.3°C and 768 mL if it exerts a pressure of 175 kPa at 25.0°C and 925 mL
Qualitatively, describe how an acid-base indicator works. Why do we want to use a minimum amount of indicator in a titration? Select all that apply.
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