Question

1. Calculate the number of moles for the following:

(i) 52 g of He (finding mole from mass)

(ii) 12.044 × 1023 number of He atoms (finding mole from number of particles).



2. Calculate the number of moles for the following:

(i) 52 g of He (finding mole from mass)

(ii) 12.044 × 1023 number of He atoms (finding mole from number of particles).



3.Calculate the mass of the following:

(i) 0.5 mole of N of molecule)

(ii) 0.5 mole of N atoms (mass from mole of atom)

(iii) 3.011 × 1023 number of N atoms (mass from number)

(iv) 6.022 × 10 23 number of N2 molecules (mass from number)

4.Calculate the number of particles in each of the following:

(i) 46 g of Na atoms (number from mass)

(ii) 8 g O 2 molecules (number of molecules from mass)

(iii) 0.1 mole of carbon atoms​

Answer 1

Explanation:

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