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Jumlah mol dari 29,8 gram amonium fosfat begin mathsize 14px style open parentheses N H subscript 4 close parentheses subscript 3 P O subscript 4 end subscript end style adalah ...

begin mathsize 14px style left parenthesis A subscript r space N equals 14 space g space mol to the power of negative sign 1 end exponent comma space H equals 1 space g space mol to the power of negative sign 1 end exponent comma space P equals 31 space g space mol to the power of negative sign 1 end exponent comma space O equals 16 space g space mol to the power of negative sign 1 end exponent right parenthesis end stylespace 

L. Avicenna

Master Teacher

Mahasiswa/Alumni Institut Teknologi Bandung

Jawaban terverifikasi

Jawaban

mol amonium fosfat adalah 0,2 mol.space 

Pembahasan

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell mol space open parentheses N H subscript 4 close parentheses subscript 3 P O subscript 4 end subscript end cell equals cell fraction numerator massa space open parentheses N H subscript 4 close parentheses subscript 3 P O subscript 4 over denominator Mr space space open parentheses N H subscript 4 close parentheses subscript 3 P O subscript 4 end fraction end cell row cell mol space open parentheses N H subscript 4 close parentheses subscript 3 P O subscript 4 end cell equals cell fraction numerator massa space open parentheses N H subscript 4 close parentheses subscript 3 P O subscript 4 over denominator left curly bracket left parenthesis 3 cross times A subscript r space N right parenthesis plus left parenthesis 12 cross times A subscript r space H right parenthesis plus left parenthesis 1 cross times A subscript r space P right parenthesis plus left parenthesis 4 cross times A subscript r space O right parenthesis right curly bracket end fraction end cell row cell mol space open parentheses N H subscript 4 close parentheses subscript 3 P O subscript 4 end cell equals cell fraction numerator 29 comma 8 space g over denominator left curly bracket left parenthesis 3 cross times 14 space g space mol to the power of negative sign 1 end exponent right parenthesis plus left parenthesis 12 cross times 1 space g space mol to the power of negative sign 1 end exponent right parenthesis plus left parenthesis 1 cross times 31 space g space mol to the power of negative sign 1 end exponent right parenthesis plus left parenthesis 4 cross times 16 space g space mol to the power of negative sign 1 end exponent right parenthesis right curly bracket end fraction end cell row cell mol space open parentheses N H subscript 4 close parentheses subscript 3 P O subscript 4 end cell equals cell fraction numerator 29 comma 8 space g over denominator left parenthesis 42 space g space mol to the power of negative sign 1 end exponent plus 12 space g space mol to the power of negative sign 1 end exponent plus 31 space g space mol to the power of negative sign 1 end exponent plus 64 space g space mol to the power of negative sign 1 end exponent right parenthesis end fraction end cell row cell mol space open parentheses N H subscript 4 close parentheses subscript 3 P O subscript 4 end cell equals cell fraction numerator 29 comma 8 space g over denominator 149 space g space mol to the power of negative sign 1 end exponent end fraction end cell row cell mol space open parentheses N H subscript 4 close parentheses subscript 3 P O subscript 4 end cell equals cell 0 comma 2 space mol end cell row blank blank blank end table end style 

Jadi mol amonium fosfat adalah 0,2 mol.space 

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