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2 years ago

Which concept can explain the acidic character of Carbon dioxide?

Chemistry

2 answers:

Mamont248 [21]2 years ago

5 0

Answer:

The concept of lewis acids and bases can explain the acidic nature of CO2. A lewis acid is a compound which can accept an electron pair whereas a lewis base is a compound which can donate an electron pair. CO2 acts as a lewis acid.

BartSMP [9]2 years ago

3 0

Explanation:

Lewis acids and bases concept

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mass and the square of the magnitude of velocity.

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2 years ago

The reactant side of a balanced chemical equation is shown below.

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Answer:

Explanation:

In the equation, Cl is chlorine and there is a number "2" so that the correct answer is 2.

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3 years ago

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One gram of Sn was electroplated from a SnCl, solution in 30 minutes. What was the current used?

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Answer:

0.903 A

Explanation:

We have given mass of Sn = 1 gram

Time t=30 minutes=30×60=1800 sec

According to Faraday law m=zit

Where z is electron chemical equivalent

z is calculated by $z=\frac{atomic\ mass}{nF}$ where n is number of element and F is Faraday constant

So $z=\frac{atomic\ mass}{nF}=\frac{118.71}{2\times 96500}=0.000615$

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4 years ago

At what temperature would a 1.15 m NaCl solution freeze, given that the van't Hoff factor for NaCl is 1.9? Kf for water is 1.86

MariettaO [177]

Answer:

-4.1°C

Explanation:

The freezing-point depression (ΔTf) is a colligative property that can be calculated using the following expression:

ΔTf = i × Kf × m

where,

i: van't Hoff factor

Kf: freezing-point depression constant

m: molality

ΔTf = 1.9 × 1.86°C/m × 1.15 m = 4.1 °C

The freezing-point of pure water is 0°C. The freezing-point of this solution is:

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8 0

4 years ago

Calculate the frequency of the green light emitted by a hydrogen atom with a wavelength of 546 nm.

Alona [7]

Answer: The frequency of the green light emitted by a hydrogen atom with a wavelength of 546 nm is $5.49 \times 10^{14} s^{-1}$ .

Explanation:

Given: Wavelength = 546 nm $(1 nm = 10^{-9} m)$ = $546 \times 10^{-9} m$

The relation between frequency and wavelength is as follows.

$\nu = \frac{c}{\lambda}$

where,

$\nu$ = frequency

c = speed of light = $3.0 \times 10^{8} m/s$

$\lambda$ = wavelength

Substitute the values into above formula as follows.

$\nu = \frac{c}{\lambda}\\= \frac{3.0 \times 10^{8} m/s}{546 \times 10^{-9} m}\\= 5.49 \times 10^{14} s^{-1}$

Thus, we can conclude that the frequency of the green light emitted by a hydrogen atom with a wavelength of 546 nm is $5.49 \times 10^{14} s^{-1}$ .

4 0

3 years ago

Which concept can explain the acidic character of Carbon dioxide?​

Which concept can explain the acidic character of Carbon dioxide?