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Explain how you would prepare 100.0mL of a solution, using pure solute and water, that is 5 v/v% C2H6O(ethanol).
Quinine (C20H24N2O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug.
The volume of a gas is 2.80 L, measured at 1.00 atm. What is the pressure of the gas in mmHg if the volume is changed to 9.11 L
calculate the ph that results when 100 mL a liquot of 0.0500 M is added to 400 M of a NH3/NH4+ buffer that is 0.200 M in NH3 and 0.300 M in NH4Cl
Iron is obtained commercially by the reaction of hematite (Fe2O3) with carbon monoxide. How many grams of iron are produced if 25.0 moles of hematite react with 30.0 moles of carbon monoxide?
ammonia will react with oxygen in the presence of a copper catalyst to form nitrogen and water. from 164.5degc to
How many grams of methane [CH4 (g)] must be combusted to heat 1.19 kg of water from 25*C to 60*C, assuming H2O (l) as a product and 100% efficiency in heat transfer?
Derive a frequency response curve for a low-pass RC filter in which R= 2.5 kohms and C = 0.015 F. Cover a range of (Vp)0/(Vp)1 of 0.00I
Calculate the activation energy (in joules) for a reaction whose rate constant doubles when the temperature is raised
a solution is prepared by dissolving 4.21 g of a nonelectrolyte in 50.0 g of water. If the boiling point increases by 0.203 C what is the molar mass of the solute? The boiling point elevation constant for water is 0.512 C/.
Why does a piece of potato break down a 100% hydrogen peroxide solution faster than lets say a 75% hydrogen peroxide and 25% water
The observations listed were made on different solns. Given the observations state which ion studied in this experiment is present. If the test is not definitive, indicate that with a (?).
Write the balanced net ionic equation for the reaction that occur in the following case. Fe(NO3)2(aq)+KOH(aq) Express your answer as a balanced net ionic equation. Identify all of the phases in your answer. then seperatly what are the spectator io..
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