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
dusya [7]
2 years ago
10

How many moles of N20 gas would have a volume of 3.8 L at 460 mmHg and 77°C?

Chemistry
1 answer:
Citrus2011 [14]2 years ago
7 0

<u>We are given:</u>

Volume of gas = 3.8 L

Pressure = 460 mmHg

Temperature = 77°c = (77+273)K = 350K

<u>Converting the pressure to atm:</u>

Pressure(in atm)  = Pressure(in mmHg) / 760

Pressure = 460/760 = 0.6 atm

<u>Finding the number of moles:</u>

using the ideal gas equation:

PV = nRT                                         [where R is the universal gas constant]

<em>replacing the given values in this equation</em>

(0.6)(3.8) = n(0.082)(350)

n = (0.6*3.8)/(0.082*350)

n = 0.08 moles

You might be interested in
What is the total number of valence electrons un xenon(xe)
Ber [7]

Answer:

8

Explanation:

Hope this helps you :)

6 0
2 years ago
An element has three naturally occurring isotopes. ten percent (.10) occurs as 55^x, fifteen percent (.15) occurs as isotope 56^
Leviafan [203]
The average atomic weight is, from the name itself, the average weight of all its naturally occurring isotopes. All you have to do is multiple the abundance of each isotope with its individual mass, then add them altogether.

Mass = (0.10*55)+(0.15*56)+(.75*57)
<em>Mass = 56.65 amu</em>
5 0
3 years ago
(e) Another student investigated the rate of a different reaction
vodka [1.7K]

Answer:

0.07 g/s.

Explanation:

From the question given above, the following data were obtained:

Mass lost = 9.85 g

Time taken = 2 min 30 s

Mean rate =?

Next, we shall convert 2 min 30 s to seconds (s). This can be obtained as follow:

1 min = 60 s

Thus,

2 min = 2 × 60 = 120 s

Therefore,

2 min 30 s = 120 s + 30 s = 150 s

Finally, we shall determine the mean rate of the reaction. This can be obtained as illustrated below:

Mass lost = 9.85 g

Time taken = 150 s

Mean rate =?

Mean rate = mass lost / time taken

Mean rate = 9.85 / 150

Mean rate = 0.07 g/s

Therefore, the mean rate of the reaction is 0.07 g/s

4 0
3 years ago
Describe the cell structure of a typical plant cell
aleksley [76]

Answer:

Wrong subject my friend.

4 0
3 years ago
If two metals has the same specific heat how can distinguish them in two ways​
tensa zangetsu [6.8K]

Explanation:

1) Thermal and Electric conductivity

2) Metallic strength

5 0
2 years ago
Other questions:
  • Helppppppppppppppppppppppppp
    7·1 answer
  • The enthalpy of a system is the same as its: A. specific heat. B. heat of reaction. C. heat of combustion. D. heat content. Rese
    14·2 answers
  • Scientific theories are usually
    7·2 answers
  • During photosynthesis, plants transform
    7·1 answer
  • How many moles of HCl are needed to react with 0.87 mol Al?
    8·1 answer
  • If 0.590 moles of a gas are found in a 9.25 L container at 1.27 atm, what is the temperature?
    14·1 answer
  • <img src="https://tex.z-dn.net/?f=%5Chuge%7B%5Cboxed%7B%5Cmathfrak%7BQuestion%3A%7D%7D%7D%5C%20%20%5Ctextless%20%5C%20br%20%2F%5
    12·2 answers
  • Please help, any and all is very much appreciated!
    15·1 answer
  • What is the function
    7·1 answer
  • Determine whether or not the mixing of each of the two solutions indicated below will result in a buffer.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!