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Find out the normal boiling point (in Celsius) of pure acetic acid giving that the liquid has a vapor pressure of 13.9 torr at 25degree Celsius and its heat of vaporization (Δhvap) is 41.7kj/mol.
For one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value using n1 = 2, and n2 = 3.
A mixture of 82.49 g of aluminum ( Picture = 26.98 g/mol) and 117.65 g of oxygen ( Picture = 32.00 g/mol) is allowed to react. Identify the limiting reactant and determine the mass of the excess reactant present in the vessel when the reaction is ..
Calculate the volume of a 0.200 M NaOH solution needed to neutralize 40.0 mL of 0.600 M HNO3 solution.
In the standardization of NaOH, 38.76 mL of NaOH was required for 0.8169 g potassium acid phthalate. Estimate the accuracy we should expect in the molarity of the NaOH solution assuming the weighing error is ±0.1 mg
Predict whether the following compounds will undergo the benzoin condensation, faster slower than benzaldehyde or give no reaction. You must think about the intermediate and the nucleophile.
Calculate the heat of reaction for the same reaction where water is a gaseous product instead of a liquid.
A second 25.0 mL aliquot of the original solution was mixed with 20.0 mL of 50 ppm quinine solution before dilution to 100 mL. The fluorescence intensity of this solution was 425. Calculate the percent quinine in the tablet.
Determine the inner diameter of the pipe (cm) at point 1. point 1 point 2 Pgauge 162kPa 97kPa Linear Velocity 4.78m/s Height above sea level 14.23m 20.35m Inner diameter of pipe 6.25cm
briefly explain how you will isolate p-tert-butylphenol after you have extracted it into NaOH solution.
1. formic acid hfor ha a ka value equal to about 1.8 x10-4. a student is asked to prepare a buffer having a ph of 3.4
Write the net ionic equations and calculate the enthalpy of neutralization for the net ionic equations:
A 45.5 g sample of copper at 99.8 degrees celsius is dropped into a beaker containing 152 g of water at 18.5 degrees celsius. What is the final temperature when thermal equilibrium is reached?
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