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
denpristay [2]
2 years ago
5

Volume of a gas at STP, if its volume is 80.0 mL at 1.08 atm and –12.5oC.

Chemistry
2 answers:
vodomira [7]2 years ago
7 0

Answer:

90.5mL is the volume of the gas at STP

Explanation:

It is possible to find volume of a gas when conditions of temperature and pressure change using combined gas law:

\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}

Where P is pressure, V is volume and T is absolute temperature. 1 is initial conditions and 2 final conditions.

If initial conditions are 1.08atm, 80.0mL and absolute temperature is (-12.5°C + 273.15) = 260.65K.

And STP are 1atm of pressure and 273.15K of absolute temperature. Replacing:

\frac{1.08atm80.0mL}{260.65K} =\frac{1atmV_2}{273.15K}

V₂ = <em>90.5mL is the volume of the gas at STP</em>

Scilla [17]2 years ago
5 0

Answer:

0.09L

Explanation:

Step 1:

Data obtained from the question.

Volume (V) = 80 mL

Pressure (P) = 1.08 atm

Temperature (T) = –12.5°C

Step 2:

Conversion to appropriate unit.

We must convert the unit of the volume and temperature to the right unit of measurement this is illustrated below:

For volume:

1000mL = 1 L

Therefore, 80 mL = 80/1000 = 0.08L

For temperature:

Temperature (Kelvin) = temperature (celsius) + 273

Temperature (Kelvin) = –12.5°C + 273

Temperature (Kelvin) = 260.5K

Step 3:

Determination of the number of mole of the gas.

The number of mole of the gas can be obtained as follow:

Volume (V) = 0.08L

Pressure (P) = 1.08 atm

Temperature (T) = 260.5K

Gas constant (R) = 0.082atm.L/Kmol

Number of mole (n) =?

PV = nRT

1.08 x 0.08 = n x 0.082 x 260.5

Divide both side by 0.082 x 260.5

n = (1.08 x 0.08) / (0.082 x 260.5)

n = 4.04x10^-3 mole

Step 4:

Determination of the volume occupied by the gas at stp.

This is illustrated below:

1 mole of a gas occupy 22.4L at stp

Therefore, 4.04x10^-3 mole will occupy = 0.09L at stp.

You might be interested in
Given the following reaction:
Wewaii [24]

Answer:

Approx. 4⋅g.

Explanation:

Moles of sulfuric acid =10.0⋅g98.08⋅g⋅mol−1=0.102⋅mol.

Now we have the molar quantity of sulfuric acid that react; we also have the stoichiometric equation that shows the molar equivalence of sulfuric acid, and lithium hydroxide.

Given the stoichiometry,

mass of water =0.102⋅mol×2×18.01.g.mol−1=??⋅g.

Why did I multiply the mass in this equation by 2? Am I pulling your leg?

3 0
2 years ago
Oxidation/reduction (redox) reactions like this: 2H2(g) + O2(g) ⇒ 2H2O(l) will occur spontaneously. To make the reaction proceed
igor_vitrenko [27]

The process is called electrolysis.

3 0
3 years ago
The density of whole blood is 1.05 g/ml. a typical adult has between 4.7 and 5.5 l of whole blood. what is the mass in pounds of
Kisachek [45]
<span>1.05 g/ml * 1000 ml = 1050g/l because of 1g/ml = 1 kg/l so, a/q mass of 4.7 l of whole blood in pound = 4.7 * 1050 = 4935 g so in pound 4935g = 10.87981p</span>
5 0
3 years ago
Hich statement describes the process of fusion, but not the process of fission?
lesantik [10]

The answer is A. this process is only in the research phase

The process of fusion involves merging of atomic nuclei to form heavier nuclei resulting in the release of enormous amounts of energy. Fusion takes place when two low mass isotopes, typically isotopes of hydrogen, unite under conditions of extreme pressure and temperature. Scientists continue to work on controlling nuclear fusion in an effort to make a fusion reactor to produce electricity. However, progress is slow due to challenges with understanding how to control the reaction in a contained space.






4 0
3 years ago
Nombra cada uno de los siguientes hidrocarburos de acuerdo a las reglas de la IUPAC
myrzilka [38]

Answer:

i) ciclobutano

ii) 3-etil-4-metil ciclopenteno

Explanation:

Toda la idea de la nomenclatura IUPAC es permitir que la estructura de la sustancia se derive de su nombre y viceversa.

La nomenclatura IUPAC es un sistema universalmente aceptado para nombrar compuestos químicos.

los nombres de los compuestos enumerados son;

i) ciclobutano

ii) 3-etil-4-metil ciclopenteno

3 0
2 years ago
Other questions:
  • At atmospheric pressure a balloon contains 2.00 l of nitrogen gas how would the volume change \
    7·1 answer
  • Why is the melting of ice a physical change? It changes the chemical composition of water. It does not change the chemical compo
    9·2 answers
  • What is aqueous solution give few examples​
    13·1 answer
  • For a science experiment what are some safety reasons for having a partner?
    14·1 answer
  • What volume of 2.5% (m/v) KOH can be prepared from 125 mL of a 5.0% KOH solution?
    10·1 answer
  • What is the total number of electron pairs shared between the two atoms in an 02 molecule
    13·1 answer
  • How many atoms are equal to 4.61 moles of carbon?
    14·2 answers
  • How many silver atoms are there in 3.76g of silver?​
    10·1 answer
  • According to the graph, which statement is correct?
    9·2 answers
  • Solid potassium fluorine gas → solid potassium fluoride balanced
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!