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Benozoic Acid has a Ka = 6.3*10^-5. A 35.0mL sample of 0.130 M Benzoic Acid is titrated with 0.150M NaOH solution. Find the pH after 0.0mL NaOH is added.
What information is gained from VSEPR analysis? What is Valence Bond Theory?
In going from room temperature (25.0 °C) to 10 °C above room temperature, the rate of a reaction doubles. Calculate the activation energy for the reaction.
A buffer is made using 45.0 mL of 0.750 M HC3H5O2 and 55.0 mL of 0.700 M NaC3H5O2.What volume of 0.10 M NaOH must be added to change the pH of the original buffer solution by 2.5%? Ka for this acid is 1.3 x 10
Mesitylene is a liquid hydrocarbon. Burning 0.115 g of the compound in oxygen gives 0.379 g of CO2 and 0.1035 g of H2O. What is the empirical formula of Mesitylene?
How many grams of water can be cooled from 54.7 ? to 43.1? by the evaporation of 19.7 g of water? The heat of vaporization of water in this temperature range is 2.40 kJ/g
calculate the heat released when 176g of water at 23.0 degrees celsius are converted to ice at -10.0 degrees celsius?
Hydrogen gas was cooled from 150C to 50 C. It's new volume is75 mL. What was it's original volume?
In a laboratory experiment, students synthesized a new compound and found that when 14.10 grams of the compound were dissolved in 208.0 grams of ethanol, the solution began to boil at 78.9510C
A piece of metal with a mass of 18.2 grams was dropped into a graduated cylinder containing 16.50mL of water. The graduated cylinder after the addition of the metal is 18.40. Determine the density of the metal.
A 26.0-g sample of ice at -10.0°C is mixed with 114.0 g of water at 72.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
the iron oxide reacts to form water vapor and Fe(s) but aluminum oxide remains unreacted. If the residue following heating weighs 1.6446g determine the wight percent of iron oxide in the original mixture.
What is the molarity of a solution made by dissolving 74.8 g of strontium perchlorate in sufficient water
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