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You are asked to determine if phenol would be better to use in barbeques than propane. To test this, you burn 120 mg of naphthalene in a calorimeter and the temperature of the calorimeter rises by 3.05 oC. Determine the calorimeter heat capacity. You now burn 100 mg of phenol using the same conditions and the temperature rises by 2.05 oC. Using this data, make a comparison of phenol and propane and discuss which might be better for use in barbies. Assume that phenol and propane are the same price per unit of mass.
When 0.938 milliliters of sulfuric acid is reacted with 2.5 milliliters of 0.00125 M potassium hydroxide, what pH reading would you expect
ammonia gas can be prepared by the following reaction caos 2 nh4ci s ---gt 2nh3g h2og caci2sif 112 g of cao and 224
if a 1.201 g sample of aluminum metal is heated in a chlorine gas atmosphere the mass of aluminum chloride produced is
Describe how you would prepare 100. mL of a 0.100 M solution of formic acid given a solution containing 4.3% by mass of formic acid with a density of 1.01g/mL.
The mass of a red blood cell is about 33 pg, and it contains typically 3 × 108 hemoglobin molecules. Each hemoglobin molecule is a tetramer of a myoglobin-like molecule; the molar mass of myoglobin is 16.1 kDa. What fraction of the mass of the cel..
PH of solution during titration process, Q1: What is the pH of a 0.35 M solution of a weak acid HA with Ka = 1.41×10^-8?
How long will it take for the pressure of the helium to equal the pressure of the argon in the container? When the pressure are equal what will the total pressure in the container be
Element X has two natural isotopes: X-6 (6.015amu) and X-7 (7.016amu). Calculate the atomic mass of element X given the abundance of X-7 is 92.5%.
Consider a solution that contains 75.0% R isomer and 25.0% S isomer. If the observed specific rotation of the mixture is -51.0°, what is the specific rotation of the pure R isomer?
Beginning with the previous noble gas, state the condensed ground-state electron configuration of an atom of the following elements. Utilizing the format [Ar] 3d10 4s2 for [Ar]3d104s2.
Determine What is the final concentration and calculate what is the Ksp of this salt at temperature of 25 degrees Celsius?
Benzene has a boiling point of 80.1 degrees celcius and a molal boiling point elevation constant of 2.53 degrees celcius/m. Calculate the boiling point of a solution containing 15.0 g of the non-electrolyte C6H4Br2 in 125 ml of benzene (sp gravity..
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