Question

which is heaviest (a)25g of hg (b)2 mole of h2o (c)2mole of co2 (c)4g-atom of oxygen​

Answer 1

okiii lets rock

$\large{mole=givenmass/molarmass}$

(a)25g of mercury

(b)2 mole of h2o

$\large{molecularmassofh2o=1+1x2+16}$

$\large{molarmass=20u}$

$\large{2mol=givenmass/20u}$

$\large{givenmass=40g}$

(c)2mol of co2

$\large{molarmassofco2=12+16x2}$

$\large{molarmass=44u}$

$\large{2mol=givenmass/44u}$

$\large{givenmas=88g}$

(d)4g atom of oxygen

so grams are given then comparing which is heaviest

$\large{mercury=25g}$

$\large{h2o=40g}$

$\large{co2=88g}$

$\large{o2=4g}$

co2 is heaviest cause it is 88g

......

Answer 2

Answer:

ans is c

Explanation:

2 moles of CO2

l hope it is useful