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3 years ago

Explain faraday's law

Chemistry

1 answer:

svlad2 [7]3 years ago

4 0

Explanation:

Faraday's Law of Induction describes how an electric current produces a magnetic field and, conversely, how a changing magnetic field generates an electric current in a conductor. ... Magnetic induction makes possible the electric motors, generators and transformers that form the foundation of modern technology.

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When chemists work with solid materials, we simply weigh out amounts of solid reagents and calculate mole amounts when thinking

IgorC [24]

Answer:

0.187 mol

Explanation:

A solution is created by dissolving 10.0 grams of ammonium chloride in enough water to make 315 mL of solution.

The formula of ammonium chloride is NH₄Cl and its molar mass is 53.49 g/mol. We can use this information to calculate the moles of ammonium chloride associated with 10.0 grams.

10.0 g × (1 mol/53.49 g) = 0.187 mol

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3 years ago

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Which of the following most likely describes the difference between the

nekit [7.7K]

Answer:

D. A seed spread by wind might be light so that it can be carried by

the wind. A seed spread by animals might be hidden in a fruit that

animals would eat.

Explanation:

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3 years ago

1. How many grams are there in 7.5 x 1023 molecules of H2SO4?

Karo-lina-s [1.5K]

Answer:

I cannot give you all the answer but I can help you to solve those.

Explanation:

The first question:

How many grams are there in 7.5× $10^{23}$ molecules of $H_{2} SO_{4}$ ?

So we need to find the molecular mass first, use your periodic table,

And then we can find out 2+32+16×4=98 g/mol

Then, we need to find how many moles, by using Avogadro's constant:

Avogadro's constant: 1 mole = 6.02× $10^{23}$

∴ $\frac{7.5*10^{23} }{6.02*10^{23}}$ =1.25 mol(2d.p.)

Lastly, find the grams using the formula $M= \frac{m}{n}$

m=Mn

m=1.25*98

m=122.5g

-------------------------------------------------------------------------------------------------------------

In conclusion, use those formula to help you:

$M= \frac{m}{n}$ (which M = molecular mass(atomic mass) m=mass of the substance and n = moles)

Avogadro's constant: $\frac {molecular mass} {6.02*10^{23}} = moles$

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3 years ago

the volume of a cylindrical tin can with a top and a bottom is to be 16Ï cubic inches. if a minimum amount of tin is to be used

Hunter-Best [27]

Answer:

The required height of the tin can is given by the height at the minimum value of the surface area function of the tin can

The height of the tin can must be 4 inches

Reason:

The given information on the tin can are;

Volume of the tin can = 16·π in.³

The amount of tin to be used = Minimum amount

The height of the can in inches required

Solution;

Let h, represent the height of the can, we have;

The surface area of the can, S.A. = 2·π·r² + 2·π·r·h

The volume of the can, V = π·r²·h

Where;

r = The radius of the tin can

h = The height of the tin can

Which gives;

16·π = π·r²·h

16 = r²·h

Which gives;

When the minimum amount of tin is used, we have;

Therefore;

4·π·(r³ - 8) = r² × 0

r³ = 8

r = 2

The radius of the tin can, r = 2 inches

The

The height of the tin can, h = 4 inches

Learn more here:

brainly.com/question/14316282

Explanation:

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3 years ago

Which is a characteristic of a Lewis base? it behaves as the electron donor. It behaves as the electron acceptor. It donates a h

Dmitry [639]

Answer:

It behaves as the electron donar. Its is correct one

Definition of lewis base:

Lewis base is a such a substance which donate pair of electron to Lewis acid.

Example:

H3N + BF3 ⇒ H3N---≥BF3

Ammonia is a lewis base while boron trifluride is lewis acid.

Condition

There should be lone pair of electron
Negative charged substances or anions

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3 years ago

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