Tolong bantu untuk nomer 1 usahakan pakai cara :")

Tolong bantu untuk nomer 1 usahakan pakai cara :”)

Jawaban:

Nomor 1

a. V = 5,6 L

Mr $O_{2}$ = (2 x Ar O) = (2 x 16) = 32 g/mol

$V = n . 22, 4$

$n = frac{V}{22,4} = frac{5,6}{22,4} = 0,25 mol$

m = n . Mr = 0,25 . 32 = 8 gr

b. V = 33,6 L

Mr $N_{2}$ = (2 x Ar N) = (2 x 14) = 28 g/mol

$V = n . 22, 4$

$n = frac{V}{22,4} = frac{33,6}{22,4} = 1,5 mol$

m = n . Mr = 1,5 . 28 = 42 gr

c. V = 2,1 L

Mr $SO_{3}$ = (1 x Ar S) + (3 x Ar O) = (1 x 32) + (3 x 16) = 80 g/mol

$V = n . 22, 4$

$n = frac{V}{22,4} = frac{2,1}{22,4} = 0,09375 mol$

m = n . Mr = 0,09375 . 80 = 7,5 gr

d. V = 2,8 L

Mr $CH_{2}$ = (1 x Ar C) + (4 x Ar H) = (1 x 12) + (4 x 1) = 16 g/mol

$V = n . 22, 4$

$n = frac{V}{22,4} = frac{2,8}{22,4} = 0,125 mol$

m = n . Mr = 0,125 . 16 = 2 gr

*bisa tolong hitung lagi ya & maaf kalau ada yang salah, semoga membantu