Question

calculate the mass of 6.022×10^23 molecules of NH Cl at STP.

Answer 1

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1mole=6.022×10^23

mass=1 (mole)×(14+1×4+1×17)=14+4+35.5=53.5g

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$\huge{\underline{\mathcal{\red{Ma} \green{rk}\pink{as}\orange{Br}\blue{ai}\pink{nl} \red{ie}\green{st}}}}$