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The odor of spoiled butter is due in part to butanoic acid, which results from the chemical breakdown of butter fat. A 0.100 M solution of butanoic acid is 1.23% ionized. Calculate the value of Ka for butanoic acid.
the emission line used for zinc determinations in atomic emissionspectroscopy is 214 nm. if there are
For complex molecules, such as those found in organic chemistry and those involving proteins, it is often the case that a) possible reactions are dictated by how the molecule was formed
The equilibrium of Fischer esterification reactions in general is slightly towards product formation. The equilibrium can be made more favorable for product formation by all of the following except
What is the minimum amount of 5.2 M H2SO4 necessary to produce 23.0 g of H2? according to the following reaction. 2Al(s)+3H2SO4(aq)-->Al2(SO4)3 (aq)+3H2(g)
What would be the number of ions present in a solution of an electrolyte if the freezing point is lowered to -5.1 degree celsuis. given that a non-electrolyte of the same concentration as the electrolyte lowers the freezing point of the same to a ..
A 4.9 M magnesium chloride solution needs to be created. What is the least amount of grams of magnesium chloride that I can use to create this solution.
The protein needs to be in 1X buffer and in a total volume of 0.100 mL. You are given a 5mg/mL protein solution, a 20X sample buffer, and distilled water. How much of each wuld you mix together to make the required volume?
Then the gas is cooled at a constant volume of 25.0L back to its original temperature. Then it contracts back at a constant tempurature to its original volume. Find the total heat flow for the entire process.
an adult drank 2 glasses of cold water 3 c in one day. the volume of each glass was 250ml. how much heat in kj did the
Acetylene, C2H2, is a gas commonly used in welding. It is formed in the reaction of calcium carbide, CaC2, with water. Given the thermochemical equations, calculate the value of ?H°f for acetylene in units of kilojoules per mole.
Develop a detailed calorimetric method for determining the temperature of the warm water sample.
compute the amount of heat required to boil 92.1 grams of benzene c6h6 start from a temperature of 42.5 degrees
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