Science, asked by Anonymous, 11 months ago

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Answered by ItzRadhika
40

Explanation ⤵️

Question =》

Which of the following pair of element represent a mole of ratio 1 : 1 ?

Answer

No of moles in 12g of mg = 12/24= 1/2 = 0.5 mole

No of moles in 6g of carbon = 6/12=1/2=0.5 mole

......Ratio......

= 0.5/0.5 = 1:1

So , option B is correct ✔

Option B is correct ✔

______________________________

Question =》

which of the following correctly represent 360 gram of water?

Answer

The molar mass of water is 18g/mol

360g of water corresponds to 360g / 18g/mol= 20mol

It is also equal to 20mol× 6.025×10²³ molecules/mol= 1.2044× 10²⁵molecules

So, Option D is correct

_______________________________

Question =》

if 32 gram of sulphur has X atoms then the number of atoms in 32 gram of Oxygen will be

Answer

Atomic mass of sulphur is 32g/mol

Therefore, Number of moles of sulphur is 1 and it contains 6.022×10²³atoms.

In 32g of oxygen contains 2 moles and atomic mass of oxygen is 16g/mol.

And hence it will contain 2× 6.022×10²³atoms

So, Option B is correct

_____________________________

Question =》

A student want to have 3.0 11 × 10²³ atoms of magnesium and carbon elements for this purpose will have to wait

Answer

Option D is correct

______________________________

Question =》

The ratio of moles of atoms in 12 gram of magnesium and 16 gram of sulphur will be :

Answer

the ratio of moles of atoms in 12 gram of magnesium and 16 gram of sulphur will be 1 : 1

So, Option C is correct

_____________________________

Question =》

If 12 gram of carbon has X atoms then the number of atoms in 12 gram of magnesium will be

Answer

Option C is correct

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Answered by cskooo7
1

Explanation:

Please mark it as BRAINLIEST answer

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