1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepan [7]
3 years ago
14

Use the solubility rules from the Lab 4 introduction and your knowledge of qualitative separation schemes from the lab to answer

the following questions. 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 .
(a) Which of the following ions could you separate, by causing them to precipitate, with the addition of HCl?
Ag+ K+ NH4+
Hg22+ Pb2+ Mg2+
Sr2+ Ba2+ Cu2+
Al3+ Fe3+
(b) After the addition of HCl, the above sample is centrifuged and decanted. Which of the following cations remaining in the supernatant could you separate, by causing them to precipitate, with the addition of H2SO4? (Hint: H2SO4 is a source of sulfate ions. Select all that apply.)
Ag+ K+ NH4+
Hg22+ Pb2+ Mg2+
Sr2+ Ba2+ Cu2+
Al3+ Fe3+
Chemistry
1 answer:
cluponka [151]3 years ago
4 0

Answer:

a13+a13

Explanation:

You might be interested in
The Symbol below is used to represent what component in a circuit?
FrozenT [24]
Actually, I strongly believe it is a switch.
8 0
3 years ago
Read 2 more answers
What temperature scale do weather reporters in the United states use to tell you how hot it is outside?
mr Goodwill [35]
US uses the <span>Fahrenheit temperature scale.</span>
8 0
3 years ago
Categorize the following reaction: C3H8 + O2 ---&gt; CO2 + H2O *
vichka [17]

Answer:

it is a replacement reaction

7 0
3 years ago
Use the problem below to answer the question: How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimit
Pavlova-9 [17]
34g C * ( 1 mol / 12.0107 ) * ( 1 mol H2 / 1 mol C ) * ( <span>2.01588 g / 1 mol H2 ) = 5.70657164028741 g H2 = 5.7 g H2

Convert grams of C to moles of C using the given amount of grams and the molar mass ( 12.0107 g/mol ).

Gather the mole ratio from the coefficients in the balanced equation and multiply by the ratio.

Convert moles of H2 to grams of H2 </span> using the given amount of grams and the molar mass ( 2.01588 g/mol )<span>.

Revise your answer to have the correct number of significant figures. </span>
6 0
3 years ago
Read 2 more answers
PF3Br2 is a nonpolar molecule. Based on this information, determine the F−P−F bond angle, the Br−P−Br bond angle, and the F−P−Br
inna [77]

Answer:

120,180,90.

Explanation:

PF3Br2 has a trigonal bypiramidal geometry. The three atoms of F will be arranged around the P atom in the same plane and each F-P-F bond will have an angle of 120 degrees. There will be only one Br atom above and beneath the P atom so the bond angle for Br-P-Br will be 180 degrees. Finally, the F−P−Br bond angle will be at 90 degrees.

8 0
3 years ago
Other questions:
  • Name two metals alloyed with iron to make stainless steel.
    15·1 answer
  • What is measured in mercury
    14·2 answers
  • I really need some help and explaining with the Heat of Combustion Lab.
    13·1 answer
  • A voltaic cell is constructed from an Ni2+(aq)−Ni(s) half-cell and an Ag+(aq)−Ag(s) half-cell. The initial concentration of Ni2+
    9·1 answer
  • The chemistry of nitrogen oxides is very versatile. Given the following reactions and their standard enthalpy changes, (1) NO(g)
    5·1 answer
  • A dam is used to retain water. Retaining water can also lead to flooding. Which most likely would be a new societal issue result
    15·2 answers
  • Determine the molar mass for the element Zn
    11·1 answer
  • Why ozone is important to organic chemistry​
    5·1 answer
  • PLSSSSS HELPPPPPPPPPPPP
    15·1 answer
  • What does the mass number of an atom represent?.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!