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
riadik2000 [5.3K]
3 years ago
13

In the chemical reaction: 2 NaCl (s) + Pb(NO3)2 (aq) ---> 2 NaNO3 (aq) + PbCl2 (s), a student adds 2.5 grams of NaCl(s) to ex

cess lead (II) nitrate solution. What is the theoretical mass, in grams, of the precipitate (solid) formed
Chemistry
1 answer:
lakkis [162]3 years ago
4 0
The amount of the precipitate PbCl2 can be obtained using stoichiometry, assuming the reaction goes into completion given the excess amounts of the lead (II) nitrate solution. First, divide 2.5 g NaCl to its MW of 58.44 g/ mol to obtain the moles of NaCl involved in the reaction. Second, knowing that for every 2 moles of NaCl, there is 1 mole of PbCl2 produced, we divide the moles of NaCl obtained earlier by 2 to get the moles of PbCl2 produced. From the moles of PbCl2, we multiply it to its MW of 278.1 g/ mol. The amount of precipitate is then calculated to be 5.9484 g PbCl2. 
You might be interested in
Help me please I really do need help pls text me if u wanna help me more
8090 [49]
Respiration . I’m pretty sure
8 0
3 years ago
Which is an example of a precipitation reaction?
netineya [11]
B. Precipitates are formed when two solutions combine to form another solution and a solid.
6 0
2 years ago
If the [H+] = 0.01 M, what is the pH of the solution, and is the solution a strong acid, weak acid, strong base, or weak base?
lana66690 [7]

Answer:

2, strong acid

Explanation:

Data obtained from the question. This includes:

[H+] = 0.01 M

pH =?

pH of a solution can be obtained by using the following formula:

pH = –Log [H+]

pH = –Log 0.01

pH = 2

The pH of a solution ranging between 0 and 6 is declared to be an acid solution. The smaller the pH value, the stronger the acid.

Since the pH of the above solution is 2, it means the solution is a strong acid.

5 0
3 years ago
What is the main factor that prevents the growth of tropical plants in the northern part of the us
Inessa05 [86]
Extreme weather e.g. snow and cold weather. Another main contributing factor is that many places have a long dry season.
3 0
3 years ago
The smallest particle to retain the properties of an element is an?
svlad2 [7]
I’m so sorry explain it more
4 0
2 years ago
Other questions:
  • How many grams of NH3 are needed to provide the same number of molecules as in 0.55 grams of SF6?
    11·1 answer
  • Which has prokaryotic cells
    8·2 answers
  • Trimix 10/50 is a gas mixture that contians 10% oxygen and 50% helium, and the rest is nitrogen. If a tank of trimix 10/50 has a
    7·1 answer
  • Water is dissolved into n-butanol (a polar liquid). Which is the second step at the molecular level as water dissolves into n-bu
    10·1 answer
  • If 16.00 g of O₂ reacts with 80.00 g NO, how many grams of NO₂ are produced? (enter only the value, round to whole number)
    10·1 answer
  • How many chloride ions are in a 220 grams of calcium chloride?
    12·1 answer
  • Ice melting in a glass of iced tea is an example of a(n) __________ process (not necessarily a chemical reaction).
    13·1 answer
  • 7. Marcie fills a graduated cylinder with 15.0mL of water. Paul finds the mass of a marble to be
    8·1 answer
  • A forklift applies a force of 2,000 N to raise a box 3 m.
    6·1 answer
  • 2. Pick two materials that float from the table above.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!