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
Lerok [7]
3 years ago
6

Calculate the mass in grams of 2.56 × 10 −3 mol of iron.

Chemistry
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0

Answer:

1.43 grams

Explanation:

Fe = 55.8 grams Fe = 1 mole Fe

2.56 • 10^-3 moles Fe / 1 • 55.8 grams Fe / 1 mole Fe = 1.43 grams Fe

Basically, you're just multiplying the molar mass of Fe (iron) by the moles of 2.56 • 10^-3 Fe, to find how many grams are in it.

2.56 • 10^-3 moles Fe = 1.43 grams Fe

You might be interested in
Hnnnnnhhhhhhh I have to write about why Tornado alley is Shifting-Please h e l p
saveliy_v [14]

Answer:

that tornado frequency has increased over a large swath of the U.S. Midwest, Southeast and parts of the Ohio Valley. tornado activity has decreased in portions of the central and southern Great Plains – parts of Texas, Oklahoma and northeast Colorado – a region traditionally associated with Tornado Alley.

Explanation:

Hope this helps have a wonderful day

6 0
3 years ago
An object weighs 32 newtons. What is its mass if a gravitometer indicates that g = 8.25 m/sec2?
lys-0071 [83]

Answer:

3.88kg

Explanation:

weight=mass_of_body(m) x acceleration_due_to_gravity(g)

The weight is given and acceleration is also give

For mass divide the weight by acceleration.

5 0
2 years ago
This is for a study guide, I can't figure it out!
miskamm [114]
<span>The answer is "D" where the number of collisions per unit area is reduced by one-half. Drawing back on the piston means the volume is increased. The pressure is reduced. There are fewer collisions when the pressure is reduced.</span>
3 0
3 years ago
What describes how the bond between two oxygen atoms is formed
HACTEHA [7]

The bond that exist between two oxygen atoms is called a double covalent bond. This bond involves the sharing of four electrons to obtain a more stable structure. This type of bond is much stronger than the single covalent bond. They are much harder to break.

4 0
4 years ago
What evidence exists that science is dynamic, that scientific theories are frequently modified?
almond37 [142]

Answer:

Nonetheless, scientific change is connected with many other key issues in philosophy of science and broader epistemology, such as realism, rationality and relativism. The present article does not attempt to address them all. Higher-order debates regarding the methods of historiography or the epistemology of science, or the disciplinary differences between History and Philosophy, while important and interesting, represent an iteration of reflection on top of scientific change itself, and so go beyond the article’s scope.

Explanation:

8 0
4 years ago
Other questions:
  • When 200g of AgNO3 solution mixes with 150 g of NaI solution, 2.93 g of AgI precipitates, and the temperature of the solution ri
    13·1 answer
  • What do you think it means to use science to answer a question?
    10·1 answer
  • The outer planets—Jupiter, Saturn, Uranus, and Neptune—are made up of which gases?
    6·2 answers
  • This is all the water; the liquid portion of the planet.
    14·1 answer
  • In witch of these examples does chemical energy change to electrical energy
    6·1 answer
  • Which relationship below is an example of a predator-prey relationship? OA. A coyote eats a hen. OB. A rabbit eats grasses. O C.
    7·2 answers
  • A rock falls from a cliff and travels downward for 6 seconds before striking the ground. How fast was the rock moving when it hi
    12·1 answer
  • 100 POINTS Which observation indicates that the kinetic-molecular theory has limited use for describing a certain gas? Gas parti
    12·2 answers
  • What are the 3 gases on Table G (of the chemistry reference table)?
    11·1 answer
  • nonmetals and metals do different things when it comes to their valence electrons. one seeks to gain and the other lose. which i
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!