Iklan

Iklan

Pertanyaan

  

Iklan

A. Chandra

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

Jawaban

jawaban yang benar sesuai tabel diatas.

jawaban yang benar sesuai tabel diatas.

Iklan

Pembahasan

Diketahui : Na = 23, S = 32, O = 16, K = 39, Cl = 35,5, Ca = 40, H = 1, C = 12, Mn = 55, Cr = 52, Al = 27 Pada soal diminta untuk melengkapi massa dan molaritas senyawa, sehingga: A. B. KCl C. D. E. F. G. H. I. J. sehingga isi tabel yang lengkap menjadi: Jadi, jawaban yang benar sesuai tabel diatas.

Diketahui:

begin mathsize 14px style italic A subscript r end style Na = 23, S = 32, O = 16, K = 39, Cl = 35,5, Ca = 40, H = 1, C = 12, Mn = 55, Cr = 52, Al = 27 

Pada soal diminta untuk melengkapi massa dan molaritas senyawa, sehingga:

A. begin mathsize 14px style Na subscript 2 S O subscript 4 end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell italic M subscript r subscript Na subscript 2 S O subscript 4 end subscript end subscript end cell equals cell left parenthesis 2 cross times italic A subscript r space Na right parenthesis plus left parenthesis 1 cross times italic A subscript r space S right parenthesis plus left parenthesis 4 cross times italic A subscript r space O right parenthesis end cell row blank equals cell left parenthesis 2 cross times 23 right parenthesis plus left parenthesis 1 cross times 32 right parenthesis plus left parenthesis 4 cross times 16 right parenthesis end cell row blank equals cell 46 plus 32 plus 64 end cell row blank equals cell 142 space g space mol to the power of negative sign 1 end exponent end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell n subscript Na subscript 2 S O subscript 4 end subscript end cell equals cell m over italic M subscript r end cell row blank equals cell fraction numerator 0 comma 71 over denominator 142 end fraction end cell row blank equals cell 0 comma 005 space mol end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open square brackets Na subscript 2 S O subscript 4 close square brackets end cell equals cell n over V end cell row blank equals cell fraction numerator 0 comma 005 over denominator 0 comma 05 end fraction end cell row blank equals cell 0 comma 1 space M end cell end table end style 

B. KCl

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell italic M subscript r subscript KCl end subscript end cell equals cell left parenthesis 1 cross times italic A subscript r space K right parenthesis plus left parenthesis 1 cross times italic A subscript r space Cl right parenthesis end cell row blank equals cell left parenthesis 1 cross times 39 right parenthesis plus left parenthesis 1 cross times 35 comma 5 right parenthesis end cell row blank equals cell 39 plus 35 comma 5 end cell row blank equals cell 74 comma 5 space g space mol to the power of negative sign 1 end exponent end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell n subscript KCl end cell equals cell m over italic M subscript r end cell row blank equals cell fraction numerator 1 comma 49 over denominator 74 comma 5 end fraction end cell row blank equals cell 0 comma 02 space mol end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open square brackets K Cl close square brackets end cell equals cell n over V end cell row blank equals cell fraction numerator 0 comma 02 over denominator 0 comma 1 end fraction end cell row blank equals cell 0 comma 2 space M end cell end table end style 

C. begin mathsize 14px style Ca open parentheses O H close parentheses subscript 2 end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell italic M subscript r subscript Ca open parentheses O H close parentheses subscript 2 end subscript end subscript end cell equals cell left parenthesis 1 cross times italic A subscript r space Ca right parenthesis plus left parenthesis 2 cross times italic A subscript r space O right parenthesis plus left parenthesis 2 cross times italic A subscript r space H right parenthesis end cell row blank equals cell left parenthesis 1 cross times 40 right parenthesis plus left parenthesis 2 cross times 16 right parenthesis plus left parenthesis 2 cross times 1 right parenthesis end cell row blank equals cell 40 plus 32 plus 2 end cell row blank equals cell 74 space g space mol to the power of negative sign 1 end exponent end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell n subscript Ca open parentheses O H close parentheses subscript 2 end subscript end cell equals cell m over italic M subscript r end cell row blank equals cell fraction numerator 3 comma 7 over denominator 74 end fraction end cell row blank equals cell 0 comma 05 space mol end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell left square bracket Ca open parentheses O H close parentheses subscript 2 right square bracket end cell equals cell n over V end cell row blank equals cell fraction numerator 0 comma 05 over denominator 0 comma 25 end fraction end cell row blank equals cell 0 comma 2 space M end cell end table end style 

D. begin mathsize 14px style H subscript 2 C subscript 2 O subscript 4 end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell italic M subscript r subscript H subscript 2 C subscript 2 O subscript 4 end subscript end subscript end cell equals cell left parenthesis 2 cross times italic A subscript r space H right parenthesis plus left parenthesis 2 cross times italic A subscript r space C right parenthesis plus left parenthesis 4 cross times italic A subscript r space O right parenthesis end cell row blank equals cell left parenthesis 2 cross times 1 right parenthesis plus left parenthesis 2 cross times 12 right parenthesis plus left parenthesis 4 cross times 16 right parenthesis end cell row blank equals cell 2 plus 24 plus 64 end cell row blank equals cell 90 space g space mol to the power of negative sign 1 end exponent end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell n subscript H subscript 2 C subscript 2 O subscript 4 end subscript end cell equals cell m over italic M subscript r end cell row blank equals cell fraction numerator 18 comma 0 over denominator 90 end fraction end cell row blank equals cell 0 comma 2 space mol end cell end table end style 

 begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open square brackets H subscript 2 C subscript 2 O subscript 4 close square brackets end cell equals cell n over V end cell row blank equals cell fraction numerator 0 comma 2 over denominator 0 comma 5 end fraction end cell row blank equals cell 0 comma 4 space M end cell end table end style 

E. begin mathsize 14px style Na subscript 2 S subscript 2 O subscript 3 end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell italic M subscript r subscript Na subscript 2 S subscript 2 O subscript 3 end subscript end subscript end cell equals cell left parenthesis 2 cross times italic A subscript r space Na right parenthesis plus left parenthesis 2 cross times italic A subscript r space S right parenthesis plus left parenthesis 3 cross times italic A subscript r space O right parenthesis end cell row blank equals cell left parenthesis 2 cross times 23 right parenthesis plus left parenthesis 2 cross times 32 right parenthesis plus left parenthesis 3 cross times 16 right parenthesis end cell row blank equals cell 46 plus 64 plus 48 end cell row blank equals cell 158 space g space mol to the power of negative sign 1 end exponent end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell n subscript Na subscript 2 S subscript 2 O subscript 3 end subscript end cell equals cell m over italic M subscript r end cell row blank equals cell fraction numerator 3 comma 95 over denominator 158 end fraction end cell row blank equals cell 0 comma 005 space mol end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open square brackets Na subscript 2 S subscript 2 O subscript 3 close square brackets end cell equals cell n over V end cell row blank equals cell fraction numerator 0 comma 005 over denominator 0 comma 1 end fraction end cell row blank equals cell 0 comma 05 space M end cell end table end style 

F. begin mathsize 14px style Ca Cl subscript 2 point 6 H subscript 2 O end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell italic M subscript r subscript Ca Cl subscript 2 point 6 H subscript 2 O end subscript end subscript end cell equals cell left parenthesis 1 cross times italic A subscript r space Ca right parenthesis plus left parenthesis 2 cross times italic A subscript r space Cl right parenthesis plus left parenthesis 12 cross times italic A subscript r space H right parenthesis plus left parenthesis 6 cross times italic A subscript r space O right parenthesis end cell row blank equals cell left parenthesis 1 cross times 40 right parenthesis plus left parenthesis 2 cross times 35 comma 5 right parenthesis plus left parenthesis 12 cross times 1 right parenthesis plus left parenthesis 6 cross times 16 right parenthesis end cell row blank equals cell 40 plus 71 plus 12 plus 96 end cell row blank equals cell 219 space g space mol to the power of negative sign 1 end exponent end cell end table end style  

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell n subscript Ca Cl subscript 2 point 6 H subscript 2 O end subscript end cell equals cell M cross times V end cell row blank equals cell 0 comma 2 cross times 0 comma 2 end cell row blank equals cell 0 comma 04 space mol end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell m subscript Ca Cl subscript 2 point 6 H subscript 2 O end subscript end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 04 cross times 219 end cell row blank equals cell 8 comma 76 space g end cell end table end style 

G. begin mathsize 14px style K Mn O subscript 4 end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell italic M subscript r subscript K Mn O subscript 4 end subscript end subscript end cell equals cell left parenthesis 1 cross times italic A subscript r space K right parenthesis plus left parenthesis 1 cross times italic A subscript r space Mn right parenthesis plus left parenthesis 4 cross times italic A subscript r space O right parenthesis end cell row blank equals cell left parenthesis 1 cross times 39 right parenthesis plus left parenthesis 1 cross times 55 right parenthesis plus left parenthesis 4 cross times 16 right parenthesis end cell row blank equals cell 39 plus 55 plus 64 end cell row blank equals cell 158 space g space mol to the power of negative sign 1 end exponent end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell n subscript K Mn O subscript 4 end subscript end cell equals cell M cross times V end cell row blank equals cell 0 comma 1 cross times 0 comma 25 end cell row blank equals cell 0 comma 025 space mol end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell m subscript K Mn O subscript 4 end subscript end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 025 cross times 158 end cell row blank equals cell 3 comma 95 space g end cell end table end style 

H. begin mathsize 14px style K subscript 2 Cr subscript 2 O subscript 7 end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell italic M subscript r subscript K subscript 2 Cr subscript 2 O subscript 7 end subscript end subscript end cell equals cell left parenthesis 2 cross times italic A subscript r space K right parenthesis plus left parenthesis 2 cross times italic A subscript r space Cr right parenthesis plus left parenthesis 7 cross times italic A subscript r space O right parenthesis end cell row blank equals cell left parenthesis 2 cross times 39 right parenthesis plus left parenthesis 2 cross times 52 right parenthesis plus left parenthesis 7 cross times 17 right parenthesis end cell row blank equals cell 78 plus 104 plus 112 end cell row blank equals cell 294 space g space mol to the power of negative sign 1 end exponent end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell n subscript K subscript 2 Cr subscript 2 O subscript 7 end subscript end cell equals cell M cross times V end cell row blank equals cell 0 comma 5 cross times 0 comma 1 end cell row blank equals cell 0 comma 05 space mol end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell m subscript K subscript 2 Cr subscript 2 O subscript 7 end subscript end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 05 cross times 294 end cell row blank equals cell 14 comma 7 space g end cell end table end style 

I. begin mathsize 14px style Al subscript 2 open parentheses S O subscript 4 close parentheses subscript 3 end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell italic M subscript r subscript Al subscript 2 open parentheses S O subscript 4 close parentheses subscript 3 end subscript end subscript end cell equals cell left parenthesis 2 cross times italic A subscript r space Al right parenthesis plus left parenthesis 3 cross times italic A subscript r space S right parenthesis plus left parenthesis 12 cross times italic A subscript r space O right parenthesis end cell row blank equals cell left parenthesis 2 cross times 27 right parenthesis plus left parenthesis 3 cross times 32 right parenthesis plus left parenthesis 12 cross times 16 right parenthesis end cell row blank equals cell 54 plus 96 plus 192 end cell row blank equals cell 342 space g space mol to the power of negative sign 1 end exponent end cell end table end style  

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell n subscript Al subscript 2 open parentheses S O subscript 4 close parentheses subscript 3 end subscript end cell equals cell M cross times V end cell row blank equals cell 0 comma 2 cross times 0 comma 1 end cell row blank equals cell 0 comma 02 space mol end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell m subscript Al subscript 2 open parentheses S O subscript 4 close parentheses subscript 3 end subscript end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 02 cross times 342 end cell row blank equals cell 6 comma 84 space g end cell end table end style  

J. begin mathsize 14px style Na subscript 2 C O subscript 3 end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell italic M subscript r subscript Na subscript 2 C O subscript 3 end subscript end subscript end cell equals cell left parenthesis 2 cross times italic A subscript r space Na right parenthesis plus left parenthesis 1 cross times italic A subscript r space C right parenthesis plus left parenthesis 3 cross times italic A subscript r space O right parenthesis end cell row blank equals cell left parenthesis 2 cross times 23 right parenthesis plus left parenthesis 1 cross times 12 right parenthesis plus left parenthesis 3 cross times 16 right parenthesis end cell row blank equals cell 46 plus 12 plus 48 end cell row blank equals cell 106 space g space mol to the power of negative sign 1 end exponent end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell n subscript Na subscript 2 C O subscript 3 end subscript end cell equals cell M cross times V end cell row blank equals cell 1 cross times 0 comma 01 end cell row blank equals cell 0 comma 01 space mol end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell m subscript Na subscript 2 C O subscript 3 end subscript end cell equals cell n cross times italic M subscript r end cell row blank equals cell 0 comma 01 cross times 106 end cell row blank equals cell 1 comma 06 space g end cell end table end style 

sehingga isi tabel yang lengkap menjadi:

 

Jadi, jawaban yang benar sesuai tabel diatas.

Perdalam pemahamanmu bersama Master Teacher
di sesi Live Teaching, GRATIS!

1

Iklan

Iklan

Pertanyaan serupa

Tentukan kemolaran larutan berikut. 3,7 gram Ca ( OH ) 2 ​ dilarutkan dalam air sehingga volume larutan menjadi 200 ml.(ArH = 1; C = 12; N = 14; O = 16; Ca = 40)

12

3.5

Jawaban terverifikasi

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Roboguru

Coba GRATIS Aplikasi Ruangguru

Download di Google PlayDownload di AppstoreDownload di App Gallery

Produk Ruangguru

Hubungi Kami

Ruangguru WhatsApp

+62 815-7441-0000

Email info@ruangguru.com

info@ruangguru.com

Contact 02140008000

02140008000

Ikuti Kami

©2024 Ruangguru. All Rights Reserved PT. Ruang Raya Indonesia