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3 years ago

Identify each of the atomic models described here. Atoms are indivisible spheres. plum pudding model Dalton model Bohr model

Chemistry

2 answers:

mamaluj [8]3 years ago

7 0

Atoms are indivisible spheres-Dalton model

John Dalton was the first to propose a theory to describe matter. As per Dalton's model, all matter is composed of atoms which resemble tiny 'ball-like' structures that are indivisible.

love history [14]3 years ago

7 0

Answer:

Dalton model

Explanation:

Dalton believed that the atom is the smallest part of a substance and that an atom cannot be divided into other subparts. But Dalton’s atomic model was later proven incorrect.

The plum pudding model was given by Thompson. Bohr model was that the electrons orbit about the central nucleus in discrete orbits.

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3 years ago

Define the following terms:

Marrrta [24]

Answer:

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3 years ago

What is the pressure exerted by a 0.500 mol sample of nitrogen in a 10.0 L container at 20°C?

lidiya [134]

The answer would be D.120 kPa

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3 years ago

Acetylsalicylic acid (C9H8O4) is a monoprotic acid commonly known as aspirin. A typical aspirin tablet, however, contains only a

pashok25 [27]

Answer:

6 grains

Explanation:

The equation of the reaction between NaOH and aspirin is;

C9H8O4(aq) + NaOH (aq) ------>C9H7O4Na(aq) + H2O(l)

Amount of NaOH reacted = concentration × volume = 0.1466 M × 14.40/1000 L = 2.11 × 10^-3 moles

Given that aspirin and NaOH react in a mole ratio of 1:1 from the balanced reaction equation above, the number of moles of aspirin reacted is 2.11 × 10^-3 moles

Hence mass of aspirin reacted = 2.11 × 10^-3 moles × 180.2 g/mol = 0.38 g

If 1 grain = 0.0648 g

x grains = 0.38 g

x= 0.38 g/0.0648 g

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3 0

3 years ago

Consider the following reaction at 298K.

lakkis [162]

The true statements are;

K < 0
Eocel < 0

<h3>What is a redox reaction?</h3>

We define a redox reaction as one in which a specie is oxidized and another is reduced.

Now;

Eo cell = cell potential = -0.13 V - (+0.34 V) = -0.47 V

n =number of moles of electrons = 2 mole of electrons

K = equilibrium constant

ΔG = change in free energy

Eo cell = 0.0592/n log K

-0.47 = 0.0592/2 log K

log K = -0.47 * 2/0.0592

K = 1.3 * 10^-16

ΔG = -nFEo cell

ΔG = -(2 * 96500 * -0.47)

ΔG = 90.7kJ

Learn more about Ecell:brainly.com/question/10203847

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2 years ago