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Estimate how many theoretical plates are needed to separate a liquid mixture of 70 mol % hexane and 30 mol % pentane?
write a plausible chemical equation to interpret at the atomic level what you observed in the reaction of Lysol Toilet Bowl Cleaner with 0.1 M AgNO3?
How much H2O is produced when 20000 g of C2H2 burns completely? Answer in units of grams
Lead(II) sulfide reacts with hydrogen peroxide to form lead(II) sulfate and water. How many grams of hydrogen peroxide (H2O2) are needed to react completely with 265 g of lead(II) sulfide
A 250 g yo-yo is swung on the end of a50 cm string at a constant speed of 4 m/s. What is the centripetal force acting on the yo-yo?
The two solutions start at a temperature of 25.5°C, and reach a final temperature of 27.8°C. The final, combined mixture has a mass of 51.6 grams and a specific heat of 4.0 J/g°C. Assume that no heat is transferred to the cup or surroundings.
The decomposition XY is second order in XY and has a rate of 7.02 E-3 M-1. s-1 at a certain temperature. A. What is the half-life for this reaction at an initial concentration of 0.100M
In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL acid in a flask. You quickly add 20.00 mL of 0.0414 M NaOH but overshoot the end point, and the solution turns deep pink.
suppose that 500 g of water vapor condense to make a cloud about the size of an average room. if we assume that the
Consider a 0.20 M NH3/0.20 M NH4CI bufffer. 0.002500 mol of HCI is added to 65.0 mL of the buffer. How many moles of NH3 and NH4+ remain once the solution has equilibriated. The ka for the equilibrium is 5.6 x 10-10
Draw the appropriate titration curve for the tripeptide Met-Lys-Val, starting at pH 1 and ending at pH 12, On the curve label the pKas and the pI
Given N2 (g) + 3 H2 (g) ? 2 NH3 (g), which scenario will allow you to eventually reach an equilibrium mixture involving these chemicals? Place only H2 into a sealed vessel. Place only N2 into a sealed vessel. Place only NH3 into a sealed vessel.
What volume (in mL) of 0.566 M solution of potassium hydroxide can be made from 58.9 mL of a 1.87 M solution? Assume the volumes are additive.
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