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Jika diketahui Ar​ C = 12, O = 16, H = 1, N = 14, maka di antara pasangan senyawa berikut yang mempunyai massa yang sama adalah .... 1 liter gas CH4​ dengan 1 liter gas O2​  3,01×1023 molekul O2​ dengan 3,01×1023 molekul NO 1 liter uap air dengan 1 liter gas NH3​  0,1 mol gas N2​ dengan 0,1 mol gas CO

Pertanyaan

Jika diketahui italic A subscript r C = 12, O = 16, H = 1, N = 14, maka di antara pasangan senyawa berikut yang mempunyai massa yang sama adalah ....

  1. 1 liter gas C H subscript 4 dengan 1 liter gas O subscript 2 
  2. 3 comma 01 cross times 10 to the power of 23 molekul O subscript 2 dengan 3 comma 01 cross times 10 to the power of 23 molekul NO
  3. 1 liter uap air dengan 1 liter gas N H subscript 3 
  4. 0,1 mol gas N subscript 2 dengan 0,1 mol gas COspace 
  1. 1, 2, dan 3 SAJA yang benar.space 

  2. 1 dan 3 SAJA yang benar.space 

  3. 2 dan 4 SAJA yang benar.space 

  4. HANYA 4 yang benar.space 

  5. SEMUA pilihan benar.space 

A. Chandra

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

Jawaban

 HANYA 4 yang benar.space 

Pembahasan

Jadi, jawaban yang benar adalah D.

1. 1 liter gas C H subscript 4 dengan 1 liter gas O subscript 2pernyataan salah.

table attributes columnalign right center left columnspacing 0px end attributes row cell n space C H subscript 4 end cell equals cell fraction numerator V over denominator 22 comma 4 end fraction end cell row blank equals cell fraction numerator 1 over denominator 22 comma 4 end fraction end cell row blank equals cell 0 comma 045 space mol end cell row cell italic m bold space C H subscript bold 4 end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 045 cross times open parentheses 12 plus open parentheses 4 cross times 1 close parentheses close parentheses end cell row blank equals cell 0 comma 045 cross times 16 end cell row blank equals cell bold 0 bold comma bold 72 bold space bold gram end cell row cell n space O subscript 2 end cell equals cell fraction numerator V over denominator 22 comma 4 end fraction end cell row blank equals cell fraction numerator 1 over denominator 22 comma 4 end fraction end cell row blank equals cell 0 comma 045 space mol end cell row cell italic m bold space O subscript bold 2 end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 045 cross times open parentheses 2 cross times 16 close parentheses end cell row blank equals cell 0 comma 045 cross times 32 end cell row blank equals cell bold 1 bold comma bold 44 bold space bold gram end cell end table 

2. 3 comma 01 cross times 10 to the power of 23 molekul O subscript 2 dengan 3 comma 01 cross times 10 to the power of 23 molekul NO, pernyataan salah.

table attributes columnalign right center left columnspacing 0px end attributes row cell n space O subscript 2 end cell equals cell fraction numerator JP over denominator 6 comma 02 cross times 10 to the power of 23 end fraction end cell row blank equals cell fraction numerator 3 comma 01 cross times 10 to the power of 23 over denominator 6 comma 02 cross times 10 to the power of 23 end fraction end cell row blank equals cell 0 comma 5 space mol end cell row cell italic m bold space O subscript bold 2 end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 5 cross times open parentheses 2 cross times 16 close parentheses end cell row blank equals cell 0 comma 5 cross times 32 end cell row blank equals cell bold 16 bold space bold gram end cell row cell n space N O end cell equals cell fraction numerator JP over denominator 6 comma 02 cross times 10 to the power of 23 end fraction end cell row blank equals cell fraction numerator 3 comma 01 cross times 10 to the power of 23 over denominator 6 comma 02 cross times 10 to the power of 23 end fraction end cell row blank equals cell 0 comma 5 space mol end cell row cell italic m bold space N O end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 5 cross times open parentheses 14 plus 16 close parentheses end cell row blank equals cell 0 comma 5 cross times 30 end cell row blank equals cell bold 15 bold space bold gram end cell end table 

3. 1 liter uap air dengan 1 liter gas N H subscript 3pernyataan salah.

table attributes columnalign right center left columnspacing 0px end attributes row cell n space H subscript 2 O end cell equals cell fraction numerator V over denominator 22 comma 4 end fraction end cell row blank equals cell fraction numerator 1 over denominator 22 comma 4 end fraction end cell row blank equals cell 0 comma 045 space mol end cell row cell italic m bold space H subscript bold 2 O end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 045 cross times open parentheses open parentheses 2 cross times 1 close parentheses plus 16 close parentheses end cell row blank equals cell 0 comma 045 cross times 18 end cell row blank equals cell bold 0 bold comma bold 81 bold space bold gram end cell row cell n space N H subscript 3 end cell equals cell fraction numerator V over denominator 22 comma 4 end fraction end cell row blank equals cell fraction numerator 1 over denominator 22 comma 4 end fraction end cell row blank equals cell 0 comma 045 space mol end cell row cell italic m bold space N H subscript bold 3 end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 045 cross times open parentheses 14 plus open parentheses 3 cross times 1 close parentheses close parentheses end cell row blank equals cell 0 comma 045 cross times 17 end cell row blank equals cell bold 0 bold comma bold 765 bold space bold gram end cell end table 

4. 0,1 mol gas N subscript 2 dengan 0,1 mol gas CO, pernyataan benar.

table attributes columnalign right center left columnspacing 0px end attributes row cell italic m bold space N subscript bold 2 end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 1 cross times open parentheses 2 cross times 14 close parentheses end cell row blank equals cell bold 2 bold comma bold 8 bold space bold gram end cell row cell italic m bold space C O end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 1 cross times open parentheses 12 plus 16 close parentheses end cell row blank equals cell 0 comma 1 cross times 28 end cell row blank equals cell bold 2 bold comma bold 8 bold space bold gram end cell end table 

Oleh karena itu, HANYA 4 yang benar.space 

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