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
TiliK225 [7]
3 years ago
12

How many moles are present in 281 grams of arsenic

Chemistry
1 answer:
Murljashka [212]3 years ago
6 0
The molar mass or As is 74.9g. Start with 281g multiply by (1mol/74.9g) = 3.75 mols

Put what you don’t want on the bottom (in this case grams) so they the u it’s cancel (if you multiply by grams and the divide by grams they cancel. Ultimately leave what you want on the top ( This case mols) then do the math
You might be interested in
How many liters of a 1.5 M solution can you make if you have .50 mol of KCl?
vaieri [72.5K]

Answer:

The answer to your question is 0.33 liters

Explanation:

Data

Volume = ?

Molarity = 1.5 M

number of moles = 0.5

Formula

Molarity = \frac{number of moles }{volume}

Solve for V

Volume = \frac{number of moles}{molarity}

Substitution

Volume = \frac{0.5}{1.5}

Simplification and result

       Volume = 0.33 l

7 0
3 years ago
What is the primary role of the United States Bureau of Counterterrorism?
zubka84 [21]

o advance counterterrorism efforts in other countries

7 0
3 years ago
Read 2 more answers
Does the temperature of the solvent (water) affect the rate of dissolving?​
gregori [183]
Yes. Heating up the solvent gives the molecules more kinetic energy. The more rapid motion means that the solvent molecules collide with the solute with greater frequency and the collisions occur with more force. Both factors increase the rate at which the solute dissolves.
3 0
3 years ago
A force can exist between two charged particles or objects even if they're as small as subatomic particles. between which of the
murzikaleks [220]
D. a and b because same-charged particles repel each other
8 0
3 years ago
In what way may drugs be used to affect neurotransmitters?
Orlov [11]
Drugs interfere with the way neurons send, receive, and process signals via neurotransmitters. Some drugs, such as marijuana and heroin, can activate neurons because their chemical structure mimics that of a natural neurotransmitter in the body. This allows the drugs to attach onto and activate the neurons. Although these drugs mimic the brain’s own chemicals, they don’t activate neurons in the same way as a natural neurotransmitter, and they lead to abnormal messages being sent through the network.

Other drugs, such as amphetamine or cocaine, can cause the neurons to release abnormally large amounts of natural neurotransmitters or prevent the normal recycling of these brain chemicals by interfering with transporters. This too amplifies or disrupts the normal communication between neurons.
3 0
2 years ago
Other questions:
  • Which two terns describe this type of data? First to answer (correct) gets brainlist
    7·1 answer
  • A sample of neon gas at 1.20 atm compresses from 0.250 l to 0.125 l. if the temperature remains constant, what is the final pres
    9·1 answer
  • When BOTH organisms benefit from a relationship it is called?
    6·1 answer
  • Tissues are grouped together to form varius what?
    8·1 answer
  • What is the overall reaction order for this rate law: rate = k[A]2[B][C]?
    14·1 answer
  • In the Bohr model of the hydrogen atom, the electron occupies distinct energy states.
    12·1 answer
  • Please help I need a answer to both
    8·1 answer
  • Pls help plsssssssss
    8·2 answers
  • Birds cause a lot of damage to airplanes every year. To study this problem, the U.S. Air Force invented a chicken cannon. Air Fo
    8·1 answer
  • Define and explain the concept of density as a property of matter
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!