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
Dennis_Churaev [7]
3 years ago
7

A sample of methane occupies a volume of 174.0 mL at 25 C and exerts a pressure of 1030.0 mmHg if the volume of the gas is allow

ed to expand to 650.0 mL at 298K what will be the pressure of the gas?
Chemistry
2 answers:
PolarNik [594]3 years ago
4 0

Answer:

The pressure will be 0,37 atm.

Explanation:

We use the Boyle Mariotte´s formula,where for a given mass of gas, at constant temperature, the pressure and temperature vary inversely proportionally. We see here that the initial and final temperature does not vary (298K).

We convert the unit Celsius into Kelvin (0 ° C = 273K) and the unite mmHg into atm (760mmHg=1 atm):

25°C= 25+273=298K   ; (1060mmHgx 1 atm)/760mmHg)=1,39 atm.

We convert unit of volume from ml to L: 174/1000=0,174L and 650/1000=0,650L

P1xV1= P2xV2

1,39 atm x 0,174L =P2 x0,650L

P2= (1,39 atm x 0,174L)/0,650L= 0,37 atm

nata0808 [166]3 years ago
3 0

Answer:

The pressure of the gas will decrease to 275.7 mmHg or 0.362 atm

Explanation:

Step 1: Data given

Volume of methane = 174.0 mL = 0.174 L

Temperature = 25.0 °C = 298 K

Pressure = 1030 mmHg = 1030/760 atm = 1.355263 atm

Volume increases to 650.0 mL = 0.650 L

The temperature stays constant

Step 2: Calculate the new pressure

P1*V1 = P2*V2

⇒with P1 = the initial pressure = 1.355263 atm

⇒with V1 = the initial volume = 0.174 L

⇒with P2 = the new pressure = TO BE DETERMINED

⇒with V2 = the new volume = 0.650 L

1.355263 * 0.174 = P2 * 0.650

P2 = 0.362 atm = 275.7 mmHg

OR

1030*0.174 = P2 * 0.650

P2 = 275.7 mmHg

The pressure of the gas will decrease to 275.7 mmHg or 0.362 atm

You might be interested in
Water boils at what degrees Celsius
Archy [21]
100 degrees Celsius. And apparently this answer needs at least 20 characters to explain it well. But yes, the answer is 100 degrees Celsius
4 0
2 years ago
Read 2 more answers
Determine the energy associated with an e- in hydrogen at n=1 and also at n=t?
Ede4ka [16]

Answer:

hydrogen atom when it drops from N 5 to N 2?

so, 275 kJ of energy is released when one mole of electrons "falls" from n = 5 to n = 2. E = hc/λ (this energy corresponds to the energy of one photon; the energy calculated in this problem is for one mole of photons so we will change this after we change the units from kJ to J)

Explanation:

please mark me as brainliest thank you

5 0
2 years ago
I don't know how to solve this​
Misha Larkins [42]

For the first part, use the question M=mol/vol (liters)

To do this, you have the given 1.6 M solution

divide the 360g by the molar mass of ethanol (44.07) to get moles

360/44.07=8.16 mol

so

1.6M = 8.16 mol/x vol

volume: 5.1 Liters

8 0
3 years ago
How many atoms are here in the following?
Elina [12.6K]

Answer:

A. 6N

B. 4H, 2O

C. 4H, 4N, 12O

D. 2Ca, 4O, 4H

E. 3Ba, 6Cl, 18O

F. 5Fe, 10N, 30O

G. 12Mg, 8P, 32O

H. 4N, 16H, 2S, 8O

I. 12Al, 18Se, 72O

J. 12C, 32H

I am 90% sure this is correct

6 0
3 years ago
Write the balanced chemical equation for the reaction of glucose (C6,H12,O6) with oxygen gas to produce carbon dioxide gas
Fittoniya [83]

Answer:

C6H12O6+6O2=6Co2+6H2o

4 0
2 years ago
Other questions:
  • An element has an atomic number of 78. the number of protons and electrons in a neutral atom of the element would be _____.
    13·1 answer
  • Please help me need help.
    7·1 answer
  • Which layers of the earths are common to both the compostitional and mechanical descriptions
    8·1 answer
  • Which of the following are acid formulas? (Choose 2)
    11·1 answer
  • HELP PLEASE I DONT KNOW WHAT THIS MEANS IM CONFUSED
    7·1 answer
  • What is the definition for domain bacteria?
    14·1 answer
  • Rosa was looking for patterns to help predict the products of chemical reactions. She recorded three similar decomposition react
    7·2 answers
  • A higher amplitude means...?
    14·1 answer
  • Helppppppppppppppppppppppppp
    9·1 answer
  • Is CH4O2 polar or nonpolar?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!