____is used as anode for prevention of corrosion 1 aluminium 2 magnesium 3 iron

Chemistry

1 answer:

choli [55]3 years ago

7 0

Answer:

I'm not sure but I think the answer is Cathodic protection.

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What causes high and low tides on Earth? A. The moon's gravitational pull on Earth causes water to bulge on two sides of Earth.B

sveticcg [70]

Answer:

The moon's gravitational pull on Earth causes water to bulge on two sides of the Earth.

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3 years ago

How many atoms are present in 98.1 grams of Ar? You may report your numerical answer in scientific notation use e-notation.

Andrei [34K]

Answer:

1.48 × 10²⁴ atoms

Explanation:

Step 1: Calculate the moles of argon

Argon is a noble gas, whose molar mass is 39.95 g/mol. We will use this data to find the moles corresponding to 98.1 grams of argon.

$98.1g \times \frac{1mol}{39.95g} =2.46 mol$

Step 2: Calculate the atoms of argon

In order to calculate the number of atoms of argon in 2.46 moles of argon, we have to consider the Avogadro's number: there are 6.02 × 10²³ atoms of Ar in 1 mole of Ar.

$2.46mol \times \frac{6.02 \times 10^{23}atoms }{1mol} = 1.48 \times 10^{24}atoms$

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3 years ago

How many Faradays of electricity are carried by 1.505×10^23 electronsk

aksik [14]

Mole of electron required by $1.505 *10^{23}$ mole is $2.5* 10 ^{-1}$

Faraday law expressed how the change that is been being produced by a current at an electrode-electrolyte interface is related and proportional to the quantity of electricity that is been used.