What is bohr's model?

Chemistry

1 answer:

egoroff_w [7]2 years ago

4 0

Answer:

In atomic physics, the Bohr model or Rutherford–Bohr model, presented by Niels Bohr and Ernest Rutherford in 1913, is a system consisting of a small, dense nucleus surrounded by orbiting electrons—similar to the structure of the Solar System, but with attraction provided by electrostatic forces in place of gravity.

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If 60.0 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298 K) and decompose completely via the e

Tresset [83]

Answer:

The final pressure of the carbon dioxide gas will 11.84 atm.

Explanation:

Moles of carbonic acid = $\frac{60.0 g}{62 g/mol}=0.9677 mol$

$H_2CO_3(aq)\rightarrow H_2O(l) + CO_2(g)$

According to reaction, 1 mol of carbonic acid gives 1 mole of carbon dioxide gas.

Then 0.9677 moles of carbonic acid will give :

$\frac{1}{1}\times 0.9677 mol=0.09677 mol$ of carbon dioxide

Moles of carbon dioxide gas = n = 0.09677 mol

Volume of soda bottle = $V_1=2 L$

Pressure of the carbon dioxide gas = P

Temperature of the carbon dioxide gas = T = 298 K

$PV=nRT$ (ideal gas law)

$P=\frac{nRT}{V}=\frac{0.9677 mol\times 0.0821 atm L/mol K\times 298 K}{2 L}=11.84 atm$

The final pressure of the carbon dioxide gas will 11.84 atm.

6 0

3 years ago

Li Ming thinks that chlorophyll is a reactant of photosynthesis, but her classmate Julian disagrees. Who is correct, and why?

Eddi Din [679]

Julian is correct because chlorophyll is neither used up nor formed in the chemical reaction of photosynthesis.

Explanation:

Julian is correct because chlorophyll is neither used up nor formed in the chemical reaction of photosynthesis. The reactants in photosynthesis are carbon dioxide and water.

Photosynthesis is the process by which green plants manufacture their food in the presence of sunlight.
In photosynthesis carbon dioxide combines with water to produce glucose and oxygen.
Chlorophyll in plant is a green pigment that is used to trap sunlight during photosynthesis.

Learn more:

Photosynthesis brainly.com/question/2761166

#learnwithBrainly

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3 years ago

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A recipe calls for 1.2 cups of oil. How many liters of oil is this?

lapo4ka [179]

0.284 liter is the answer

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3 years ago

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