Which activity best demonstrates Ernest Rutherford’s creativity?

Chemistry

2 answers:

Ber [7]3 years ago

4 0

Answer is: B. designing an experiment to test the plum pudding model.

Rutherford demonstrate that J.J Thompson's Plum Pudding model was not accurate, but before testing, he thought that plum pudding model is correct.

Rutherford theorized that atoms have their charge concentrated in a very small nucleus.

This was famous Rutherford's Gold Foil Experiment: he bombarded thin foil of gold with positive alpha particles (helium atom particles, consist of two protons and two neutrons).

Rutherford observed the deflection of alpha particles on the photographic film and notice that most of alpha particles passed straight through foil.

That is different from Plum Pudding model, because it shows that most of the atom is empty space.

lesantik [10]3 years ago

4 0

Answer:

B. designing an experiment to test the plum pudding model.

Explanation:

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Lady bird [3.3K]

That is correct boi boi boi boo boi

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3 years ago

(b) What is the pKa of the dimethylammonium ion, (CH₃)₂NH₂⁺ ?

g100num [7]

The pKa of the dimethylammonium ion, (CH₃)₂NH₂⁺ is 10.7.

<h3>What do we know about dimethylammonium ion?</h3>

The conjugate acid of dimethylamine, dimethylaminium is an organic cation and a significant species at pH 7.3. It is a secondary aliphatic ammonium ion and an organic cation. It is a dimethylamine conjugate acid.

<h3>What do we understand by pKa?</h3>

In layman's terms, pKa is a measurement of an acid's strength. A strong acid will have a pKa value that is lower than 0. To be more specific, pKa is the Ka value's negative log base ten value (acid dissociation constant). How tightly a proton is retained by a Bronsted acid is how the strength of an acid is measured. The strength of the acid and its capacity to donate protons increase with decreasing pKa values.