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aleksley [76]
3 years ago
5

you are experimenting with a radioactive sample of polonium at the en of 14.0 minutes exactly 1/16 of the polonium remains. what

is the corresponding halflife of polonium
Chemistry
1 answer:
Dmitry_Shevchenko [17]3 years ago
7 0

Answer:

t(1/2) = 3.5 min

Explanation:

From A = A₀e⁻ᵏᵗ => k = ln(A/A₀)/-t = [ln(1/16)/-14]min⁻¹ = 0.198 min ⁻¹

=> t(1/2) = 0.693/k = (0.693/0.198)min = 3.5min

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Answer:

Acetylide , Enol ,aldehydes, tautomers, alkynes , Hydroboration, Keto

Explanation:

Reset <u>Acetylide</u>  anions are strong nucleophiles that open epoxide rings by an SN2 mechanism. <u>Enol </u>tautomers have an O-H group bonded to a C=C. <u>aldehydes </u>are formed from terminal alkynes with the addition of water using BH3 then H2O2. <u>tautomers</u> are constitutional isomers that differ in the location of a double bond and a hydrogen and exist in an equilibrium with each other. <u>alkynes</u> are compounds that contain a carbon-carbon triple bond. <u>Hydroboration</u> of a terminal alkyne adds BH₂ to the less substituted, terminal carbon.<u> Keto</u> tautomers have a C=O and an additional C-H bond.

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