The qualitative analysis experiment you did is actually an abbreviated version of a much larger analysis scheme in which many different cations are separated and identified. Suppose a mixture contains Ag+, K+, NH4+, Hg22+, Pb2+, Mg2+, Sr2+, Ba2+, Cu2+, Al3+ and Fe3+.
Required:
a. What ions could you separate, by causing them to precipitate, with the addition of HCl?
b. After the addition of HCl, the above sample is centrifuged and decanted. Which cations remaining in the supernatant could you separate, by causing them to precipitate, with the addition of H2SO4?
Answers: 3
Chemistry, 22.06.2019 13:00
If two objects at different te,peraure are in contact with each other what happens to their temperature
Answers: 1
Chemistry, 22.06.2019 14:30
100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)
Answers: 1
Chemistry, 23.06.2019 02:30
Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.
Answers: 1
The qualitative analysis experiment you did is actually an abbreviated version of a much larger anal...
Mathematics, 20.04.2021 19:30
Chemistry, 20.04.2021 19:30
Mathematics, 20.04.2021 19:30
Mathematics, 20.04.2021 19:30
Mathematics, 20.04.2021 19:30
Mathematics, 20.04.2021 19:30
Mathematics, 20.04.2021 19:30