Chemistry, 21.08.2019 18:30, ashylynn2423
What is the effect of substituting soluble metal salts such as nacl and k2co3 for hcl or (nh4)2co3 in the qualitative analysis scheme for separating the five analytical groups?
a. na+ and k+ react violently with acids such as h2s, producing highly flammable and potentially explosive hydrogen gas.
b. there is no effect on the analysis since na+ and k+ do not form a precipitate.
c. potassium ion forms a precipitate with sulfide ion.
d. you can no longer tell if your original sample contained na+ or k+.
e. the nacl and k2co3 are not pure, analytical grade materials.
Answers: 1
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