Roboguru

Sebanyak 17 g natrium nitrat (Ar Na=23, N=14, O=16) dan 6 g karbon (Ar C=12) bereaksi menurut persamaan berikut: NaNO3 (g) + C(g) → NaNO2(s) + CO2(g) (belum setara) Massa natrium nirit yang dihasi

Sebanyak 17 g natrium nitrat (Ar Na=23, N=14, O=16) dan 6 g karbon (Ar C=12) bereaksi menurut persamaan berikut:

NaNO3 (g) + C(g)  NaNO2(s) + CO2(g) (belum setara)

Massa natrium nirit yang dihasilkan adalah …

  1. 6,9 g

  2. 8,5 g

  3. 13,8 g

  4. 17,0 g

  5. 34,5 g

Jawaban:

begin mathsize 14px style Mol space NaNO subscript 3 equals gram over Mr equals 17 over 85 equals space 0 comma 2 space mol  Mol space straight C equals space gram over Mr equals 6 over 12 equals 0 comma 5 space mol  Persamaan space reaksi colon  space space space space space space space space space space space space space space space space space NaNO subscript 3 space space space space space space space space space space space space plus space space space space straight C space space space space space space space space space space space space space rightwards arrow space 2 NaNO subscript 2 space space space space space space plus space space space space CO subscript 2  Mula space space space space space space space space space 0 comma 2 space mol space space space space space space space space space space space space space space space space space 0 comma 5 space mol space space space space space space space space space  Reaksi space space space space space space 0 comma 2 space mol space space space space space space space space space space space space space space space space space 0 comma 1 space mol space space space space space space space space space space space space space 0 comma 2 space mol space space space space space space space space space space space space space 0 comma 1 space mol  Sisa space space space space space space space space space space 0 space mol space space space space space space space space space space space space space space space space space space space space 0 comma 4 space mol space space space space space space space space space space space space space 0 comma 2 space mol space space space space space space space space space space space space space 0 comma 1 space mol  Massa space NaNO subscript 2 equals space mol space straight x space Mr  space space space space space space space space space space space space space space space space space space space space space space space equals 0 comma 2 space straight x space 69  space space space space space space space space space space space space space space space space space space space space space equals space 13 comma 8 space gram end style

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