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Hitunglah volum dari gas-gas di bawah ini pada keadaan STP! a.11 gram gas   b. 100 gram gas   c. 4 gram gas CO d. 34 gram gas

Pertanyaan

Hitunglah volum dari gas-gas di bawah ini pada keadaan STP!

a.11 gram gas C O subscript 2 

b. 100 gram gas S O subscript 3 

c. 4 gram gas CO

d. 34 gram gas N H subscript 3 

Pembahasan Soal:

Rumus:

Volum 1 mol gas pada STP = 22,4 L

table attributes columnalign right center left columnspacing 0px end attributes row Volum equals cell mol space x space fraction numerator 22 comma 4 space L over denominator 1 space mol end fraction end cell row mol equals cell fraction numerator Volum over denominator 22 comma 4 space L forward slash mol end fraction end cell row massa equals cell mol space x space Mr end cell end table

 

Berikut adalah perhitungan volum dari gas-gas pada keadaan STP:

a.11 gram gas C O subscript 2 

table attributes columnalign right center left columnspacing 0px end attributes row cell mol space gas space C O subscript 2 end cell equals cell fraction numerator massa space C O subscript 2 over denominator Mr space C O subscript 2 end fraction end cell row blank equals cell fraction numerator 11 space g over denominator 44 space g forward slash mol end fraction end cell row blank equals cell 0 comma 25 space mol end cell row blank blank blank row cell Volum space gas space C O subscript 2 end cell equals cell 0 comma 25 space mol space x space fraction numerator 22 comma 4 space L over denominator 1 space mol end fraction end cell row blank equals cell 5 comma 6 space L end cell end table 

Jadi, volum gas C O subscript 2 adalah 5,6 L.

 

b. 100 gram gas S O subscript 3 

table attributes columnalign right center left columnspacing 0px end attributes row cell mol space gas space S O subscript 3 end cell equals cell fraction numerator massa space S O subscript 3 over denominator Mr space S O subscript 3 end fraction end cell row blank equals cell fraction numerator 100 space g over denominator 80 space g forward slash mol end fraction end cell row blank equals cell 1 comma 25 space mol end cell row blank blank blank row cell Volum space gas space space S O subscript 3 end cell equals cell 1 comma 25 space mol space x space fraction numerator 22 comma 4 space L over denominator 1 space mol end fraction end cell row blank equals cell 28 space L end cell end table 

Jadi, volum gas C O subscript 2 adalah 28 L.

 

c. 4 gram gas CO

table attributes columnalign right center left columnspacing 0px end attributes row cell mol space gas space C O end cell equals cell fraction numerator massa space C O over denominator Mr space C O end fraction end cell row blank equals cell fraction numerator 4 space g over denominator 28 space g forward slash mol end fraction end cell row blank equals cell 0 comma 14 space mol end cell row blank blank blank row cell Volum space gas space space C O end cell equals cell 0 comma 14 space mol space x space fraction numerator 22 comma 4 space L over denominator 1 space mol end fraction end cell row blank equals cell 3 comma 136 space L end cell end table 

Jadi, volum gas C O subscript 2 adalah 3,136 L.

 

d. 34 gram gas N H subscript 3 

table attributes columnalign right center left columnspacing 0px end attributes row cell mol space gas space N H 3 end cell equals cell fraction numerator massa space N H subscript 3 over denominator Mr space N H subscript 3 end fraction end cell row blank equals cell fraction numerator 34 space g over denominator 17 space g forward slash mol end fraction end cell row blank equals cell 2 space mol end cell row blank blank blank row cell Volum space gas space space N H subscript 3 end cell equals cell 2 space mol space x space fraction numerator 22 comma 4 space L over denominator 1 space mol end fraction end cell row blank equals cell 44 comma 8 space L end cell end table  

Jadi, volum gas C O subscript 2 adalah 44,8 L.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 04 Juni 2021

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