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A first order reaction has activation energy of 50.1 kJ/mol as well as a frequency factor Arrhenius constant of 8.27 x 1010 sec -1. Compute the rate constant at 26oC. Utilize the nearest whole number.
A solution of 0.0041 M of an unknown acid has a pH of 3.195. Calculate the Ka value for the unknown acid, HA.
The choice of precipitating reagent is important. Briefly explain what the consequences would be if excess 6M NaOH solution instead of 6M NH3 solution were used to separate Fe3+ and Al3+ ions from Ca2+, Cu2+, and K+ ions at pH 9-10.
A compound was analyzed and found to be composed of 75% cardbon and 25% hydrogen. What is the Empirical formula of this compund
potassium hydrogen phthalate is a monoprotic acid. dihydrogen pthalate h2c8h4o4 is a diprotic acid. an analyte sample
For each of the reactions, calculate the mass (in grams) of the product formed when 3.51g of the underlined reactant completely reacts. Assume that there is more than enough of the other reactant.
Define this observation- While zinc metal is added to a solution of dilute H2SO4 bubbles of gas are formed and the zinc disappears.
What kind of intermolecular attractive forces would be present between the particles in the following substances
This aqueous mixture then reacts with excess aqueous lead (II) nitrate to form 21.75g of solid. Determine the mass percent of sodium chloride in the original mixture?
The neutral OH molecule has been implicated in certain ozone-destroying processes which take place in the upper atmosphere. a.) Assuming the electron added to OH is entirely localized in a single atomic orbital on one atom
If you were extracting 4-chloroaniline and naphthalene (a mixture in ether), what reagents could you use to obtain a separation via extraction technique
a sample of water is to be analyzed for solids content. ten liters 10 l of water are passed through a filter initially
Determine the boiling point of a solution of 22.5 g of fructose, C6H12O6 , in 294 g of phenol.
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