Chemistry, asked by sanjanabahl4328, 25 days ago

Sodium ka pramany darvyaman 23 amu h to uske 6.022×10 ki ghar 23 m parmAnu darvyman

Answers

Answered by Sagarsinghbaghel
0

Explanation:

as gsffdgdwwhat is the formula to calculate mass of 1 mole atom of C12 in amu ?12 atoms x 1.66 x 10-24g x 6.022 x 1023 atoms/ mol= 12 g/mol. So a single carbon atom weighs 12 amu while a mole of carbon atoms weighs 12.01g/mol.Sodium ka pramany darvyaman 23 amu h to uske 6.022×10 ki ghar 23 m parmAnu darvymanSolution

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Let the time he walks be x hours

From the given condition

3(x)+9(3−x)=15⟹6x=12⟹x=2

So the time he runs is 3−2=1 hour

Distance covered by running is 1×9=9 km

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Solve c) Arun had to cover a journey of 18 km on foot. walking, it was found that he could cover only What is the distance he has still to cover? After 5 hours of his journey.We divide the polynomial x

4

+2x

3

−2x

2

+x−1 by x

2

+2x−3 as shown in the above image:

From the above division, we conclude that the quotient is x

2

+1 and the remainder is −x+2.

Therefore, −(−x+2) that is x−2 must be added to the given polynomial so that the resulting polynomial is exactly divisible by x

2

+2x−3.

Hence, (x−2) must be added to the polynomial x

4

+2x

3

−2x

2

+x−1 so that the resulting polynomial is exactly divisible by x

2

+2x−3.

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