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The normal boiling point of ethanol is 78 degrees celsius. If the vapor pressure of ethanol is 13.3 kPa at 34.9 degrees celsius. Calculate the enthalpy of vaporization of ethanol?
A gas is confined to a container with a massless piston at the top. (Figure 2) A massless wire is attached to the piston. When an external pressure of 2.00 is applied to the wire, the gas compresses from 5.90 to 2.95
Compute pH and [OH-] for each of the following solutions. (a) 8.1×10-2M Na2CO3, (b) 0.15M NaCN
The Ksp for PbSO4 = 2.53 X 10-8. What is the molar solubility of PbSO4 in a 4.20M solution of gallium sulfate?
What observed rotation is expected when a 1.02 M solution of (R)-2-butanol is mixed with an equal volume of a 0.510 M solution of racemic 2-butanol
Among the properties they report are the equilibrium internuclear distance Re, the vibrational wavenumber, v, and the dissociation energy
A chemist places 1.7823 g of Na2SO4 in a 100 mL volumetric flask and adds water to the mark. She then pipets 10 mL of the resulting solution into a 50 mL volumetric flask and adds water to the mark and mixes to make a solution.
What is the pH of a buffer solution that is 0.255 M in lactic acid and 0.333 M in sodium lactate? The Ka of lactic acid is 1.4 × 10-4.
Suppose that 0.650mol of methane, \rm CH_4(g), is reacted with 0.800mol of fluorine, \rm F_2(g), forming \rm CF_4(g) and \rm HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released
calculate the number or calories of heat energy required for warming 34.6g of water from 18.9 celsius to 29.9
Why isn't HBrO a stronger acid than HBr. Doesn't the acid strength increase with the amount of oxygens.
Choose the correct expression for Keq and description (homogeneous or heterogeneous) for the following reaction: 2 PbO(s) + 2 SO2(g) 2 PbS(s) + 3 O2(g)
Calculate the pH of a 1.00 L solution which is made up of 0.046 mol acetic acid and 0.026 mol sodium acetate.
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