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
sweet-ann [11.9K]
2 years ago
12

If I have 0.275 moles of gas at a temperature of 75 K and a pressure of 1530 mmHg, what is the volume of the gas?

Chemistry
1 answer:
Maru [420]2 years ago
6 0

Answer: The volume of the gas is 0.84 Liters

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 1530 mm Hg = 2.01 atm     (760mmHg=1atm)

V = Volume of gas = ?

n = number of moles = 0.275

R = gas constant =0.0821Latm/Kmol

T =temperature =75K

V=\frac{nRT}{P}

V=\frac{0.275atm\times 0.0820 Latm/K mol\times 75K}{2.01atm}=0.84L

Thus the volume of the gas is 0.84 Liters

You might be interested in
The density of water is 1 gm/ml. An object has a mass of 58 grams. What volume must it have in order to float in water?
Keith_Richards [23]

Answer:

58mL

Explanation:

Given parameters:

Density of water  = 1g/mL

Mass of object  = 58g

Unknown:

The volume the object must have to be able to float in water = ?

Solution:

To solve this problem, we know that the object must have density value equal to that of water or less than that of water to be able to float.

We then set its density to that of water;  

   Density  = \frac{mass}{volume}  

      Volume  = \frac{mass}{density}  

So;

      Volume  = \frac{58}{1}   = 58mL

7 0
2 years ago
Which statement justifies that hydrogen peroxide (H2O2) is a polar molecule?
Rudik [331]
To determine whether a compound is polar or nonpolar you have to take into account:

1) formation of dipoles due to the difference in electronegativities of the atoms

2) shape of the molecule to conclude whether there is a net dipole momentum.

You already, likely, know that the electronegativities of H and O are significatively different, being O more electronegative thatn H. So, you can conclude easilty that the electrons are atracted more by O than by H, thus creating two dipoles H→O

Regarding the shape, it may appear that the molecule is symmetrical, which would lead to the cancellation of the two dipoles. But that is not the true. The H2O2 is not symmetrical.

The lewis structure just show this shape

      **   **
H - O - O - H
      **   **

which is what may induce to think that the molecule is symmetrical, leading to the misconception that it is nonpolar.

But in a three dimensional arrangement you could see that the hydrogens are placed in non symmetrical positions, which leads to the formation of a net dipole momentum, and thus to a polar molecule.

The fact that H2O2 is a polar compound is the reason why it can be mixed with water and the H2O2 that you buy in the pharmacy is normally a solution in water.

So, the hydrogen peroxide is polar because the hydrogens are not placed symmetrically in the molecule, which result in a net dipole momentum.
4 0
3 years ago
What is the oxidation number of tin (Sn) in the compound Na2SnO2? A. -2 B. 0 C. +2 D. +3
Allisa [31]

O.N. of Na = +1

O.N. of O = -2

Let, O.N. of Tin = x

1*2 + x + -2*2 = 0

2+x-4 = 0

x-2 = 0

x = 2

SO OPTION C IS YOUR ANSWER......

7 0
3 years ago
Read 2 more answers
The melting point of table salt is 801 degrees celsius. is this a physical or chemical property?
Valentin [98]
It is a Physical property because like water it changes into a ice cube but it can be melted into water or be turned back into an ice cube.
5 0
2 years ago
"calculate the ratio of the velocity of hydrogen molecules to the velocity of carbon dioxide molecules at the same temperature"
Ne4ueva [31]

Answer: 1:4.69

Explanation:

The ratio can be expressed as:

Ua/Ub= √(Mb/Ma)

Where Ua/Ub is the ratio of velocity of hydrogen to carbon dioxide and Ma is the molecular mass of hydrogen gas= 2

Mb is the molecular mass of CO2 = 44

Therefore

Ua/Ub= √(44/2)

Ua/Ub = 4.69

Therefore the ratio of velocity of hydrogen gas to carbon dioxide = 1:4.69

which implies hydogen is about 4.69 times faster than carbon dioxide.

8 0
3 years ago
Other questions:
  • Can somebody Answer number 23 please it’s for a exam
    15·1 answer
  • Write this numeral in scientific notation.<br><br> 820.5
    10·1 answer
  • Which of the following is an input for cellular respiration? a. CO2 b. H2O c. sunlight d. O2 Please select the best answer from
    10·2 answers
  • Fill in the blank spot.
    11·1 answer
  • Which of the following is NOT a medium through which a mechanical wave can travel?
    11·2 answers
  • A.
    11·1 answer
  • प्रश्न 01. बेकिंग सोडा बनाने के लिए आवश्यक सामग्री निर्माण की विधि एंव रासायनिक<br>समीकरण लिखिए।​
    11·1 answer
  • I'll give brianliest if correct .
    5·1 answer
  • A beach ball and a bowling ball were sitting on a shelf. Someone bumped the shelf and the bowling ball and beach ball rolled off
    8·1 answer
  • The diagram shows a plant cell.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!