Mohon bantuannya kak...

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Jawaban:

B. 49 gram

Penjelasan:

$mol = frac{vol : (liter)}{22.4}$

$mol : O2= frac{13.44}{22.4} = 0.6$

$frac{mol : KClO3}{mol :O2} = frac{koefisien : KClO3}{koefisien :O2}$

$frac{mol : KClO3}{0.6} = frac{2}{3}$

$mol :KClO3 = frac{2}{3} times 0.6 = 0.4$

$Mr : KClO3 : = 39 + 35.5 + 3 times 16 = 122.5$

$massa : KClO3 = 0.4 times 122.5 = 49 : gr$

Gambar Jawaban