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
Scilla [17]
3 years ago
10

How many molecules are equal to 10.35 g of pyridine?

Chemistry
1 answer:
Lera25 [3.4K]3 years ago
7 0

Answer:

0.78× 10 ²³ molecules

Explanation:

Given data:

Mass of pyridine = 10.35 g

Number of molecules = ?

Solution:

Number of moles of pyridine:

Number of moles = mass/molar mass

Number of moles = 10.35 g/ 79.1 g/mol

Number of moles = 0.13 mol

Number of molecules;

1 mole contain 6.022× 10 ²³ molecules

0.13 mol × 6.022× 10 ²³ molecules / 1mol

0.78× 10 ²³ molecules

You might be interested in
Iron is a mineral. A nail made out of iron <br> a mineral.<br><br> Answers:<br> Is also<br> Is not
Mademuasel [1]
Is also is the answer I’m pretty sure
7 0
3 years ago
Read 2 more answers
What is the mass, in grams, of two liters of water?
erma4kov [3.2K]
Well, 2 litres is 2 kilograms. 1000 grams = 1 kilogram

So that means that 2 litres of water = 2000 grams
3 0
3 years ago
Commercial agriculture can often lead to water-quality problems. In one to two sentences, explain how two of those problems occu
anygoal [31]

Commercial agriculture can often lead to water-quality problems in the following ways:

  • The washing of fertilizers and pesticides into water bodies from farms.

<h3>What is water quality?</h3>

Water quality refers to the state of a water body that encompasses it's physical, chemical and biological characteristics.

The water quality of a water body is crucial to its suitability for domestic or drinking purpose.

Commercial agriculture greatly affects water quality in the following ways:

  • The washing of fertilizers and pesticides into water bodies from farms.

Learn more about water quality at: brainly.com/question/20848502

#SPJ1

4 0
2 years ago
Propose a mechanism for the following reaction.
raketka [301]
First, recognize that this is an elimination reaction in which hydroxide must leave and a double bond must form in its place. It is likely an E2 reaction. Here is an efficient mechanism:
1) Pre-reaction: Protonate the -OH to make it a good leaving group, water. H2SO4 or any strong H+ donor works. The water is positively charged but still connected to the compound.
2) E2: Use a sterically hindered base, such as tert-butoxide (tButO-) to abstract the hydrogen from the secondary carbon. [You want a sterically hindered base because a strong, non-sterically hindered base could also abstract a hydrogen from one of the two methyl groups on the tertiary carbon, and that leads to unwanted products, which is not efficient]. As the proton of hydrogen is abstracted, water leaves at the same time, creating an intermediate tertiary carbocation, and the 2 electrons in the C-H bond immediately are used to make a double bond towards the partial positive charge.
In the products we see the major product and water, as expected. Even though you have an intermediate, remember that an E2 mechanism technically happens in one step after -OH protonation. 
5 0
3 years ago
The indicator used in this redox titration is sulfuric acid
anygoal [31]
Methyle orange is the indicator that is used in sulfuric acid.
4 0
3 years ago
Other questions:
  • The net force on a car traveling at a constant speed in a straight line is zero. In which of these would the net force remain ze
    8·1 answer
  • Convert 13,400 m to km.
    8·2 answers
  • For an electrically charged object to repel another object,what must happen.
    5·2 answers
  • You have a 2 Liter solution that contains 1 mole of NaCI. What is the molarity of the solution?
    15·1 answer
  • How long does primary succession take? ty sm ily
    13·1 answer
  • Which substance increases in solubility as the temperature decreases?
    6·2 answers
  • What is 2\5 please let me know what the answer​
    9·1 answer
  • Draw the structure of the Tetrapeptide asp-met-lys-tyr
    14·1 answer
  • How was your day????????​
    10·2 answers
  • What are some of the global effects of a volcanic eruption?​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!