Question

。

有人知道圈起來的地方的意思是
AgI質量乘 142/233＝新生成的AgCl質量嗎？
所以這一串式子是原本的AgCl質量再加上後面進行反應新生成的AgCl質量嗎？

4-17. A 0.6407-g sample containing chloride and io-
dide ions gave a silver halide precipitate weigh-
ing 0.4430 g. This precipitate was then strongly
heated in a stream of Cl2 gas to convert the Agi
to AgCl; on completion of this treatment, the
precipitate weighed 0.3181 g. Calculate the per-
centage of chloride and iodide in the sample.

0.3197
0.1233
③
massag] + mas Agc) = 0.4430 – pet the
= 一開始
。
MiAgI : 233, mAgcl:
massagc) + massag(3) -0,3181 3135. Min
(233
强反腐
142
1142
I
1
2
=
0.3906 mass442 = 0.1349, mas5492
. = 0.3199, Massagc = D. 1233
massag2
I: 9:3192 x 126 X100% = 26.48% +
I:
X
0.6409
Cl: 0.1233
142
x 35
0.6402
-X
X100% = 4.743% +
#