Question

(a) Calculate the no. of moles present in 10 g of H2O , (b) Calculate the no. of moles present in 1.5g of CO2 , (c) Calculate the no. of moles present in 35 g of H2SO4 , (d) Calculate the no. of atoms present in 14 g of oxygen .........satisfying answer will be mark as brainlist.......​

Answer 1

Answer:

Explanation:

Molar mass of h20 is 18 so

No of moles= Given mass/molar mass

....... then 10/18=0.55

B- similarly molar mass of co2 is 44

So 1.5/44= 0.27

C- is also same molar mass of h2so4 is 98 so 35/98

D-no of atoms if oxygen is gas then no of moles×Na×No of atoms in compound

Like 14g oxygen molar mass is 32

14/32=0.43

So 0.43×6.022 ×10^23×2=.....

Answer 2

Answer:

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Explanation:

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