Question

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A compound of N and O with a molar mass of 92.00 g was found to have an empirical formula of NO,. What is its Molecular Formula?

Answer 1

ANS 1 THE EMPERICAL FORMULA OF A COMPOUND CONATINING N and O

GIVEN IF THEIR MOLAR MASS IS IS 92 gm

given thAT the emperical formula is NO2

THEN MOLECULAR FORMULA WILL BE N2O2

EXPLANATION: AS THE EMPERICAL FDORMULA GIVE THE IDEA ABOUT THE SIMPLEST RATIO BETWEEN N AND O ATOM IN MOLECULE I.E NO2 BUT HAVING MOLAR MASS IS 92 .

EMPERICAL FORMULA : N 2O

14 + 32= 46gm

14.2+32.2= 28+64= 92gm

and in this case it is showing N2O2 MOLECULAR FORMULA.

ANS 2 SEE ALL THE OTHER QUESTION ARE OF SIMMILAIR TYPE SI IAM GIVING IDEA ABOUT HOW TO SILVE IT .

SEE YOU NEED TOL CALCULATE THE NO OF ATOM

SO YO MUST REMEMBER THAT I MOLE OF ZANY SUBSTANCE CONSITS 6.011* 10 ^{23 ATOM}

^HERE THIS ATOMS MAY BE ION .

SO ALL U NEED TO CALCULATE THE NO OF MOLES BY FOLLOWING FORMULA

NO OF MOLES= GIVEN WT \MOLECULAR WEIGHT

AND ONE MORE NOTE TO REMEMBER

I MOLE OF ANY MOLECULE=MOLECULAR MASS F THAT MOLECULE

I MOLE OF ANY ATOM[= ATOMIC MASS OF ATOM