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
katrin2010 [14]
3 years ago
13

What mass of carbon dioxide occupies a volume of 81.3 L at 204 kPa and temperature of 95.0 C

Chemistry
1 answer:
matrenka [14]3 years ago
7 0

The mass of CO₂ present is 238.52g

<u>Explanation:</u>

Given:

Volume, V = 81.3 L

Pressure, P = 204 kPa = 204000 Pa

Temperature, T = 95°C

                       T = 95 + 273 K

                       T = 368 K

Mass of CO₂, x = ?

Molecular weight of CO₂ = 44 g/mol

According to gas law:

PV = nRT

where,

n = number of moles

n = given mass/ molecular mass

R = gas constant

R = 8.314 X 10³ L Pa K⁻¹ mol⁻¹

Substituting the value:

204000 X 81.3 = \frac{x}{44} X 8.314 X 10^3 X 368\\ \\x = \frac{44 X 204 X 81.3}{8.314 X 368} \\\\x = 238.52 g

Therefore, the mass of CO₂ present is 238.52g

You might be interested in
The human body can get energy by metabolizing proteins, carbohydrates or fatty acids, depending on the circumstances. Roughly sp
Kamila [148]

Answer:

the ratio of the energy the body gets metabolizing each gram of alanine to the energy the body gets metabolizing each gram of glucose is 1.0111

Explanation:

Given the data in the question;

To determine the ratio of the energy the body gets metabolizing each gram of alanine to the energy the body gets metabolizing each gram of glucose, first we get the molar masses of both alanine and glucose

we know that;

Molar mass of alanine ( C₃H₇NO₂ ) = 89.09 g/mol

Molar mass of glucose ( C₆H₁₂O₆ ) = 180.16 g/mol

now, { metabolizing each gram }

moles of alanine = mass taken / molar mass

= 1g / 89.09 g/mol = 1/89.09 moles

moles of glucose = mass taken / molar mass

= 1g / 180.16 g/mol = 1/180.16 moles

In each molecule of alanine, we have 3 atoms  of carbon.

Also, in each molecules of glucose, we have 6 atoms of carbon

so,

number of moles of Carbons in alanine = 3 × 1/89.09 moles = 0.03367

number of moles of Carbons in glucose = 6 × 1/180.16 moles = 0.0333

so ratio of energy will be the ratio of carbon atoms, which is;

⇒ 0.03367 / 0.0333 = 1.0111

Therefore, the ratio of the energy the body gets metabolizing each gram of alanine to the energy the body gets metabolizing each gram of glucose is 1.0111

7 0
3 years ago
How many electrons does hydrogen need to satisfy the octet rule?
quester [9]
Just 2 valence electrons.

Hydrogen already has one to start with, as well. With the exception of hydrogen and helium, all other atoms need 8 valence e-
4 0
3 years ago
A)The plates are all moving in the same direction
nevsk [136]
I believe the answer is C) there is an obvious reasoning for this all you have to do is eliminate answers that don't seem right for example, A)the plates are all moving the same direction every plate moves in different directions. B) The plates are all the same size. Well, it's really obvious that that is not true because every plate has its different shape and size. D) where two plates meet, they always move apart. If this were true, then we would never have earthquakes when plates meet earthquakes happen. so there for the answer is C)
7 0
3 years ago
The entropy change for a real, irreversible process is equal to:______.
taurus [48]

Answer:

The entropy change for a real, irreversible process is equal to <u>zero.</u>

The correct option is<u> 'c'.</u>

Explanation:

<u>Lets look around all the given options -:</u>

(a)  the entropy change for a theoretical reversible process with the same initial and final states , since the entropy change is equal and opposite in reversible process , thus this option in not correct.

(b) equal to the entropy change for the same process performed reversibly ONLY if the process can be reversed at all. Since , the change is same as well as opposite too . Therefore , this statement is also not true .

(c) zero. This option is true because We generate more entropy in an irreversible process. Because no heat moves into or out of the surroundings during the procedure, the entropy change of the surroundings is zero.

(d) impossible to tell. This option is invalid , thus incorrect .

<u>Hence , the correct option is 'c' that is zero.</u>

8 0
3 years ago
Write the balanced equation for the reaction that occurs when methanol, CHEOH () is burned in air. What is the coefficient of ox
GaryK [48]

Answer:

The balanced equation for methanol when is burned in the air, is

CH3OH + O2 ----->  3/2 CO2  +2 H2O and as you see coefficient of oxygen is 3/2

Explanation:

When you always burn something you are doing combustion. The reactives are your compound + O2, and as products you have CO2 and H2O

4 0
3 years ago
Read 2 more answers
Other questions:
  • What best explains the type of energy present in the wheels of a moving bus
    7·1 answer
  • What is the most likely reason that nonmetals are electrical insulators
    13·2 answers
  • We’ve all heard of acid rain and its impact on the environment, the infrastructure, like roads and buildings, and on humans. If
    12·1 answer
  • What is the correct measurement for solubility?
    8·1 answer
  • What are two properties of diamonds that make them different from other forms of carbon?
    12·1 answer
  • What do SPF sunscreen and ozone in the earths atmosphere do
    14·1 answer
  • Consider the decomposition of a metal oxide to its elements where m represents a generic metal. m3o4
    5·1 answer
  • What does binding energy measure
    6·2 answers
  • As the amount of charge on two objects increases, the strength of the electrical force between the objects
    10·2 answers
  • Annual precipitation rates can be collected for several years, added together, and divided by the number of years to obtain an a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!