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Reaksi berikut merupakan salah satu tahapan reaksi pembentukan ammonia melalui proses: CaCN 2 ( s ) ​ + 3 H 2 ​ O ( s ) ​ → CaCO 3 ( s ) ​ + 2 NH 3 ( g ) ​ Jika 13,2 gram CaCN 2 ​ direaksikan dengan uap air berlebih, pernyataan berikut yang benar adalah.... ( Ar Ca = 40 , C = 12 , H = 1 , O = 16 , N = 14 ) 1. Terbentuk 6,8 gram gas NH 3 ​ 2. Bereaksi dengan 10,8 gram uap air 3. Terbentuk endapan CaCO 3 ​ sebanyak 20 gram 4. Tersisa CaCN sebanyak 1,2 gram

Reaksi berikut merupakan salah satu tahapan reaksi pembentukan ammonia melalui proses:

Jika 13,2 gram  direaksikan dengan uap air berlebih, pernyataan berikut yang benar adalah....

1. Terbentuk 6,8 gram gas
2. Bereaksi dengan 10,8 gram uap air
3. Terbentuk endapan sebanyak 20 gram
4. Tersisa sebanyak 1,2 gram

  1. jika jawaban (1), (2), dan (3) benar

  2. jika jawaban (1) dan (3) benar

  3. jika jawaban (2) dan (4) benar

  4. jika jawaban (4) saja yang benar

  5. jika semua jawaban (1), (2), (3), dan (4) benar

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S. Susanti

Master Teacher

Mahasiswa/Alumni Universitas Jayabaya

Jawaban terverifikasi

Pembahasan

CaCN subscript 2 open parentheses straight s close parentheses end subscript space plus space 3 straight H subscript 2 straight O subscript open parentheses straight s close parentheses end subscript space rightwards arrow space CaCO subscript 3 open parentheses straight s close parentheses end subscript space plus space 2 NH subscript 3 open parentheses straight g close parentheses end subscript 0 comma 2 space mol space space space space space space 0 comma 6 space mol space space space space space space space 0 comma 2 space mol space space space space space space space 0 comma 4 space mol  Mol space CaCN subscript 2 equals fraction numerator m a s s a space CaCN subscript 2 space over denominator Mr space CaCN subscript 2 end fraction equals fraction numerator 13 comma 2 space gram over denominator 66 end fraction equals 0 comma 2 space mol  1 right parenthesis space K a r e n a space k o e f i s i e n space a m o n i a space left parenthesis N H subscript 3 right parenthesis space equals space 2 space x space k o e f i s i e n space C a C N subscript 2 comma space m a k a colon space m o l space N H subscript 3 equals fraction numerator k o e f i s i e n space N H subscript 3 over denominator k o e f i s i e n space C a C N subscript 2 space end fraction x space m o l space C a C N subscript 2 space m o l space N H subscript 3 equals 2 over 1 space space x space 0 comma 2 space m o l equals 0 comma 4 space m o l Massa space NH subscript 3 equals m o l space NH subscript 3 cross times M r space NH subscript 3 space space space space space space space space space space space space space space space space space space space space equals 0 comma 4 space mol cross times 17 space space space space space space space space space space space space space space space space space space space space equals 6 comma 8 space gram  2 right parenthesis K a r e n a space k o e f i s i e n space space H subscript 2 O space equals space 3 space x space k o e f i s i e n space C a C N subscript 2 comma space m a k a colon space m o l space H subscript 2 O equals fraction numerator k o e f i s i e n space H subscript 2 O over denominator k o e f i s i e n space C a C N subscript 2 space end fraction x space m o l space C a C N subscript 2 space m o l space H subscript 2 O equals 3 over 1 space space x space 0 comma 2 space m o l equals 0 comma 6 space m o l  Massa space straight H subscript 2 straight O equals m o l space straight H subscript 2 straight O cross times M r space straight H subscript 2 straight O space space space space space space space space space space space space space space space space space space space space equals 0 comma 6 space mol cross times 18 space space space space space space space space space space space space space space space space space space space space equals 10 comma 8 space gram  3 right parenthesis space K a r e n a space k o e f i s i e n space space CaCO subscript 3 space equals k o e f i s i e n space C a C N subscript 2 comma space m a k a colon space m o l space CaCO subscript 3 equals m o l space C a C N subscript 2 equals 0 comma 2 space m o l  Massa space CaCO subscript 3 equals m o l space CaCO subscript 3 cross times M r CaCO subscript 3 space space 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 mol cross times 100 space space space space space space space space space space space space space space space space space space space space space space space space space equals 20 space gram  4 right parenthesis space 4 right parenthesis M a s s a space C a C N space h a b i s space b e r e a k s i space d e n g a n space u a p space a i r space b e r l e b i h space k a r e n a space j u m l a h space m o l space C a C N subscript 2 space d a n space j u m l a h space m o l space H subscript 2 O space y a n g space b e r e a k s i space t e p a t space h a b i s comma space s e h i n g g a space t i d a k space a d a space C a C N subscript 2 space y a n g space t e r s i s a. space

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