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A chemical reaction is found to have an activation energy (Ea = 15 kJ/mol). At a temperature of 505 K, what fraction of collisions have enough energy to exceed the activation energy
Is PH3 polar or nonpolar, and why? Some sources say it's polar because of the lone pair. Others say it's nonpolar
what is the concentration of sodium ions in the resulting solution?
An individual's blood alcohol content (% alcohol in blood as measured mass per volume = mass of alcohol per volume of blood) was 0.15. If we assume the individual drank all of the alcohol at once
A silver electrode is placed in a saturated solution of AgBr. This half-cell is connected to a standard hydrogen electrode and the voltage is found to be +0.437 V. Calculate Ksp for AgBr.
Determine the number of grams of O2 consumed.
Write one overall equation, using an alkali metal ion and a nitrate ion as spectator ions if needed, for the following net ionic equation: H+(aq) + OH-(aq) ? H2O(l)
What would the potential of a standard hydrogen (S.H.E.) electrode be if it was under the following conditions?
The addition of anhydrous calcium chloride to the crude product obtained from the separation procedure often results in the product becoming clear (transparent). What causes the clearing?
The tetrahedral intermediate in the Fischer esterification of formic acid (HCO2H) with 1-butanol has the structure
After about five minutes of mixing, the final temperature of the solution inside the calorimeter reached 37 C. Calculate the heat capacity of the calorimeter (J/C - joules per degree).
Molecular compound Y2(g), has a bond energy of 750 kJ/mol, and the molecular compound XY(g) has a bond energy of 1500 kJ/mol. Using bond-energy information, calculate ?H for the following reaction:
Often reactions of tertiary alcohols or tertiary alkyl halides result in elimination reactions and not substitution reactions
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