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
lana [24]
2 years ago
6

Pyridine, C5H5N, is a polar organic solvent. How many carbon atoms are in 7.05 moles of pyridine? 4.24 x 1024 4.24 x 10, 24 2.12

x 1024 2.12 x 10, 24 4.24 x 1023 4.24 x 10, 23 2.12 x 1025
Chemistry
1 answer:
leonid [27]2 years ago
3 0

Answer:

2.122×10^25atoms

Explanation:

number of moles=mass/molar mass

7.05moles= mass of pyridine/79

reacting mass of pyridine=556.95

C5H5N= (12×5)+(5)+(14)=79

C5=60

to find the mass of carbon in 556.95g of pyridine we take the stoichometric ratio

60[C5] -----> 79[C5H5N]

x[C5] --------> 556.95g[C5H5N]

cross multiply

x=(60×556.95)/79

x=423g of carbon

moles=mass/molar mass

moles of carbon=423/12

moles=35.25moles of carbon

moles=number of particles/Avogadro's constant

35.25=number of particles/6.02×10^23

number of particles=2.122×10^25atoms of carbon

You might be interested in
Ethane, C2H6, can be formed by reacting acetylene, C2H2, with hydrogen gas as follows: C2H2(g) H2(g) ⇌ C2H6(g) Exothermic What c
Pavel [41]

Answer:

Equilibrium shifts to the right

Explanation:

An exothermic reaction is one in which temperature is released to the environment. Hence, if the reaction vessel housing an exothermic reaction is touched after reaction completion, we will notice that the reaction vessel e.g beaker is hot.

To consider the equilibrium response to temperature changes, we need to consider if the reaction is exothermic or endothermic. In the case of this particular question, it has been established that the reaction is exothermic.

Heat is released to the surroundings as the reactants are at a higher energy level compared to the products. Hence, increasing the temperature will favor the formation of more reactants and as such, the equilibrium position will shift to the left to pave way for the formation of more reactants. Thus , more acetylene and hydrogen would be yielded

8 0
3 years ago
How do the test variables (independent variables) and outcome variables (dependent variables) in an experiment compare? A. The t
Ghella [55]

Answer:

I'm on the exact same queston

6 0
3 years ago
Read 2 more answers
15.How can a pure sample of barium sulphate be otained from barium carbonate?
yan [13]

Answer:

Barium carbonate powder is stirred add pulp in the entry, the vitriol that the adds solubility then reaction that makes the transition is filtered and is obtained the barium sulfate filter cake and liquid after the transition.

8 0
3 years ago
At what temperature do KCl and NaCl have the same solubility?
Serhud [2]

Answer:

they have the same molar solubility at 44.5 degrees celsius

5 0
3 years ago
Is the maximum population that a given area can support
Anastaziya [24]

Answer:

Carry capacity

Explanation:

I took the test

Hope this helps

pls mark brainliest :3

8 0
3 years ago
Read 2 more answers
Other questions:
  • Mike, Jackie, Jeremy, and Niki were widely known to the be the fastest fifth graders at Robinson Elementary School. They wanted
    10·1 answer
  • Give an example of an artificial satellite. will give brainliest
    5·2 answers
  • for the reaction C+2H2= Ch4 how many molecules of hydrogen are required to produce 14 grams of methane Ch4?
    13·1 answer
  • Which of the following is an anion of 14N?<br> 14N5+<br> 14N3-<br> 15N
    5·1 answer
  • Which of the following is an example of observational scientific investigation?
    5·2 answers
  • How many neutrons does element X have if its atomic number is 31 and its mass number is 84?
    14·1 answer
  • PLEASE HELP FAST!! I need someone to see if my answers are correct!
    5·1 answer
  • Hdjshjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj???????????????
    6·1 answer
  • How did the believers show their fellowship with one another?​
    12·1 answer
  • What is indicated by the methyl- prefix ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!