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
Natalija [7]
3 years ago
15

Osmium has a density of 22.6 g/cm3. What volume (in cm3) would be occupied by a 21.8 g sample of osmium? 1.04 2.03 × 103 493 0.9

65 2.03 × 10-3
Chemistry
1 answer:
vazorg [7]3 years ago
3 0

Answer:

volume =0.9645cm³

Explanation:

density refers to the ratio of mass to volume of a substance. It gives us a clue about how heavy an object is.

density = mass/volume

volume = mass/density

mass=21.8g

density=22.6g

volume =21.8/22.6

volume =0.9645cm³

You might be interested in
How many molecules of XeF6 are formed from 12.9 L of F2 (at 298 K and 2.6 atm) according to 11) the following reaction? Assume t
ddd [48]

Answer:

#Molecules XeF₆ = 2.75 x 10²³ molecules XeF₆.

Explanation:

Given … Excess Xe + 12.9L F₂ @298K & 2.6Atm => ? molecules XeF₆

1. Convert 12.9L 298K & 2.6Atm to STP conditions so 22.4L/mole can be used to determine moles of F₂ used.

=> V(F₂ @ STP) = 12.6L(273K/298K)(2.6Atm/1.0Atm) = 30.7L F₂ @ STP

2. Calculate moles of F₂ used

=> moles F₂ = 30.7L/22.4L/mole = 1.372 mole F₂ used

3. Calculate moles of XeF₆ produced from reaction ratios …

Xe + 3F₂ => XeF₆ => moles of XeF₆ = ⅓(moles F₂) = ⅓(1.372) moles XeF₆ = 0.4572 mole XeF₆

4. Calculate number molecules XeF₆ by multiplying by Avogadro’s Number  (6.02 x 10²³ molecules/mole)

=> #Molecules XeF₆ = 0.4572mole(6.02 x 10²³ molecules/mole)

                                  = 2.75 x 10²³ molecules XeF₆.

8 0
3 years ago
What part of cellular respiration is affected by arsenic
LenaWriter [7]

Answer:

It effects all of the cellular respiration process

Explanation:

It inhibits the Glycolysis. It replaces the phosphate groups that is needed for making Pyruvate and ATP.

5 0
3 years ago
The measure of the number of atoms in one element that will combine with am atom of element is?
raketka [301]
<span>These atoms are known as valence atoms.</span>
4 0
3 years ago
Read 2 more answers
If there are 80 liters of argon gas in a piston and the piston expands the gas until its volume is 2000 liters with a pressure o
Mice21 [21]

Answer: The correct answer is A. 11.5 atm. The temperature is held constant at 293 K, therefore, we can use Boyle's Law to determine the initial pressure. Boyle's Law states that there is an inverse relationship between pressure and volume of gases. Therefore, as volume increases, the pressure will decrease and vice versa.

Further Explanation:

Boyle's Law can be mathematically expressed as:

P_{initial}V_{initial}\ = P_{final}V_{final}

In this problem, we are given the values:

P(initial) = ?

V(initial) = 80 L

P (final) = 0.46 atm

V (final) = 2000 L

Plugging in these values into the equation:

P_{initial}(80 \ L) = \ (0.46 \ atm)(2000 \ L)\\P_{initial} \ = \frac{(0.46 \ atm) \ (2000 \ L)}{80 \ L}\\P_{initial}\ = 11.5 atm\\

The initial pressure was 11.5 atm. Since the volume increased or expanded, the space where the gas particles move is bigger, so the frequency of collisions with the wall of the container and with other particles are effectively decreased. This, therefore, decreases the pressure from 11.5 to 0.46 atm.

Learn More

  1. Learn about Charles' Law brainly.com/question/1421697
  2. Learn about Ideal Gas Law brainly.com/question/6534668
  3. Learn about Gay - Lusaac's Law brainly.com/question/1358307

Keywords: gas, Boyle's Law, Ideal Gas Law

7 0
3 years ago
Elaborate on how to classify elements and pure compounds.
tankabanditka [31]

Answer: C) Elements and pure compounds are homogeneous materials because they have a uniform composition throughout.

Explanation: Element is a pure substance which is composed of atoms of similar elements. Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.

Elements are compounds form homogeneous materials as they have uniform composition throughout and the components are evenly distributed throughout the material.

Mixtures are heterogeneous materials as they do not have uniform composition and the components are not evenly distributed throughout the material.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Earth's climate has been stable throughout its history. True False
    7·1 answer
  • How is the half-life of a radioactive material useful for radioactive dating?
    5·1 answer
  • Which subatomic particle has negligible mass and travels around outside the nucleus?
    6·1 answer
  • On one side of the cycle, green plants take in carbon atoms from the air make them part of their______
    6·1 answer
  • I need answers please!
    10·1 answer
  • A bonfire and a Bunsen burnet form of energy
    8·1 answer
  • Hi help me pls i don't know this ​
    12·1 answer
  • Can someone help with #6 <br> Will mark brainliest too!
    13·1 answer
  • Can someone help with this problem
    13·1 answer
  • Write two half‑reactions to describe each of these metal displacement reactions. Include phase symbols.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!