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Phenol is a weak acid that is sometimes used as a disinfectant. Calculate the pH of a solution of 0.0100 M phenol. Ka for phenol is 1.3 X 10-10.
How many mole of hydrogen gas can be liberated from 85.5 moles of magnesium hydride if the process operates at 80% efficiency
A 12-liter tank contains helium gas pressurized to 160. What size tank would be needed to contain this same amount of helium at atmospheric pressure 1 ATM.
Beta-carotene is organge. This means it absorbs blue lgiht. It has conjguated systme which allows the pi-electrons to delocalize over teh length of the molecule.
Chemistry The rate of a first-order reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm. The reaction occurs in a 1.09-cm sample cell
the temperature was returned to the origenal value what would be the partial pressure of each gas be?
Solid iron reacts with chlorine gas to produce iron(III) chloride. If 10.0 grams of iron reacts with excess chlorine gas and 18.5 grams of iron(III) chloride is produced
How many moles of sodium acetate must be added to 1.8 L of 0.25 M acetic acid to give a solution that has a pH equal to 4.68? Ignore the volume change due to the addition of sodium acetate.
Calculate the concentration of magnesium and calcium in ppm. Record your answers as ppm Mg2+, and Ca2+ espectively. For each answer indicate the ppm as CaCO3 also.
gaseous hydrocarbon required 50 mL of oxygen for complete combustion. If 30 mL of CO2 gas were evolved, what is the molecular formula of the hydrocarbon?
What is the absolute humidity of the cooled air? and What is the minimum mass flow rate of water into the swamp cooler?
calculate the standard reduction potential of Joaquium. Write reaction in cell notation form.
If 160 mL of wet h2 is collected over water at 24 degrees Celsius and a barometric pressure of 738 torr , how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 torr.)
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