Question

suppose we have found 50% iron and 50% nitrogen into 109 gm's of thing.Now please say what is the weight of those 50% iron and 50 % nitrogen of that thing?​

Answer 1

Answer : 5 g atoms of nitrogen weighs most.

Explanation :

We have to calculate the mass for all the options.

For part 1 : 50 g of iron

The mass of iron = 50 g

For part 2 : 5 g atoms of nitrogen

As we know that the 5 gram atom is equal to 5 moles

As, 1 mole of nitrogen contains 28 g of nitrogen

So, 5 moles of nitrogen contains  of nitrogen

The mass of nitrogen = 140 g

For part 3 : 0.1 g atoms of silver

As we know that the 0.1 gram atom is equal to 0.1 moles

As, 1 mole of silver contains 108 g of silver

So, 0.1 moles of silver contains  of silver

The mass of silver = 10.8 g

For part 4 :  atoms of carbon

As,  atoms of carbon present in 12 g of carbon

So,  atoms of carbon present in  of carbon

The mass of carbon = 1.99 g

From this we conclude that 5 g atoms of nitrogen weighs most.

Hence, the correct option is, 5 g atoms of nitrogen

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Answer 2

Answer:

50%=1/2

109 gram's50%=109×1/2

=109/2

=54. 5gm

50% of iron and 50%of nitrogen weight is 54. 5 gram

Explanation:

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