trao doi de 17 khoa luyn de thay Ngoc

N

nguyenvancuong1225@gmail.com

cau 4 sao en tinh ra cau D,cau cau 35 tinh ra cau A
nho thay va cac ban giup em

Câu 4:
10357600_1451839891730157_1014180490938088595_n.jpg

0,1mol Ala-Gly-Glu + NaOH (vừa đủ) --> muối
$m_{muối}=0,1(89+22) + 0,1(75+22) + 0,1(147+22.2)=39,9g$



10441275_1451839888396824_7240199088007329246_n.jpg


$v=-\dfrac{(0,2-1)}{2.20}=0,02mol/l.s$
 
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