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the process (A-> B is first order with a half-life of 0.21 seconds. How long would it take for 15.0M of A to decrease to 0.25 M?
What would the concentration of A be after 2.0 minutes?
Determine the ΔH solution for this compound If the heat of solvation for this compound = -30.8 kJ/mol , crystal lattice energy = -62.2 kJ/mol.
Use a molar mass of 800g/mol for the vegetable oil and use a density of 0.88g/mL for vegetable oil and 0.79 g/mL for methanol to calculate how many moles of ethanol are used.
In the equation HSO4- + H2O SO4-2 + H3O+, if the Ka is 1.5 x 10 ^-2 and HSO4- = 1.0 M at equilibrium, what is the pH of this solution?
What is the theoretical percent, by weight, of calcium in Ca(OCl)2
An optimization from a particular starting structure of a compound C5H10O2 leads to an energy of 25.12 KJ/mol.
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
What is the maximum number of liters of Fe2O3(s) that can be made from 11.53 L of O2(g) and 16.07 L of FeS(s) at STP?
Determine the rate constant also explain how many mg will remain after thirty nine days - A radiation biologist studies the decomposition rate of a certain substance and obtains the given data as
If 45.4g of H2O are produced in the reaction given below, the number of grams of magnesium carbonate used is.?
Sketch Flow diagram and explain the extraction process - What is the purpose of extracting the organic layer with water in the first extraction step?
Explain why alcohols such as ethanol and propanol are soluble in water, butanol is moderately soluble and pentanol is slightly soluble
The vapor pressure of dichloromethane,CH_2Cl_2, at 0 degrees C is 134 mmHg. The normal boiling point of dichloromethane is 40. degrees C. Calculate its molar heat of vaporization.
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