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
Georgia [21]
2 years ago
15

A tank of gas has partial pressures of nitrogen and oxygen equal to 1.61 × 104 kPa and 4.34 × 103 kPa , respectively.What is t

he total pressure of the tank?
Chemistry
1 answer:
Alchen [17]2 years ago
7 0

Answer:

20.44\times 10^3 kPa is the total pressure of the tank.

Explanation:

Partial pressures of nitrogen = p_{N_2}=1.61\times 10^4 kPa

Partial pressure of oxygen =  p_{O_2}=4.34\times 10^3 kPa

Total pressure of gases in the tank = P

Applying Dalton's law of partial pressures :

P=p_{N_2}+p_{O_2}=1.61\times 10^4 kPa+4.34\times 10^3 kPa

P=20.44\times 10^3 kPa

20.44\times 10^3 kPa is the total pressure of the tank.

You might be interested in
Help me with 23 fast
alina1380 [7]

Answer:

a salt

Explanation:

compounds are made of molecules but we need to mention the type of compound formed.

5 0
3 years ago
Read 2 more answers
Name the type of ion formed by the atom when it loses three electrons. Show by illustration
Nimfa-mama [501]
The atoms of elements can gain or lose electrons and become ions. Ions are charged particles that have gained or lost electrons. The atoms of elements can gain or lose electrons to form monatomic ions (made from a single atom of an element).
5 0
2 years ago
Read 2 more answers
Because of friction, some work is always changed into
Arturiano [62]

Answer:

Thermal Energy

Explanation:

I'll give you an example, Rub your hands together. Then touch your face or leg to feel any temperature change. Most likely your hands are warmer.

8 0
2 years ago
Read 2 more answers
Which of these is an example of a chemical change?
egoroff_w [7]

A. Fireworks exploding is the answer

8 0
2 years ago
Read 2 more answers
A sample of 10.6 g of KNO3 was dissolved in 251.0 g of water at 25 oC in a calorimeter. The final temperature of the solution wa
finlep [7]

Answer:

36.55kJ/mol

Explanation:

The heat of solution is the change in heat when the KNO3 dissolves in water:

KNO3(aq) → K+(aq) + NO3-(aq)

As the temperature decreases, the reaction is endothermic and the molar heat of solution is positive.

To solve the molar heat we need to find the moles of KNO3 dissolved and the change in heat as follows:

<em>Moles KNO3 -Molar mass: 101.1032g/mol-</em>

10.6g * (1mol/101.1032g) = 0.1048 moles KNO3

<em>Change in heat:</em>

q = m*S*ΔT

<em>Where q is heat in J,</em>

<em>m is the mass of the solution: 10.6g + 251.0g = 261.6g</em>

S is specififc heat of solution: 4.184J/g°C -Assuming is the same than pure water-

And ΔT is change in temperature: 25°C - 21.5°C = 3.5°C

q = 261.6g*4.184J/g°C*3.5°C

q = 3830.87J

<em>Molar heat of solution:</em>

3830.87J/0.1048 moles KNO3 =

36554J/mol =

<h3>36.55kJ/mol</h3>

<em />

6 0
2 years ago
Other questions:
  • All of the following statements about solutions are correct Except?
    5·1 answer
  • How many grams of aluminum oxide would form if 15.2 moles of aluminum burned
    7·1 answer
  • C-12 has 6 protons.<br> How many neutrons does C-13 have?<br> A. 6<br> B. 7<br> C. 13<br> D. 19
    11·2 answers
  • Which is the closest antonym for the word prone?​
    13·1 answer
  • Consider sodium oxide, Na2O. Choose the best explanation for the subscript, 2, from the list provided.
    13·2 answers
  • 2. Lysosomes operate within the cell bye to the
    14·1 answer
  • Which. option is an example of physical property
    13·2 answers
  • Which of these changes is a chemical change?
    10·1 answer
  • Determine the oxidation number of CI element in each of the following species:
    13·1 answer
  • Help ASAP!!! I need it now i have to write similar test tmrw
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!