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
ella [17]
3 years ago
5

In this section, you learned about pressure in fluids. Answer the question that follows.

Chemistry
1 answer:
Serga [27]3 years ago
7 0

I think that the answer might be B.

You might be interested in
A solution of sodium chloride in water has a vapor pressure of 19.6 torr at 25°C. What is the mole fraction of NaCl in this solu
Debora [2.8K]

Answer:

Mole fraction of Nacl is 0.173

Explanation:

we know that

P_{sol}=\chi_{solvent}P^0_{solvent}

where,

P sol  - the vapor pressure of the solution

χ  solvent - the mole fraction of the solvent

P ∘ solvent  - the vapor pressure of the pure solvent

This means that in order to be able to calculate the mole fraction of sodium chloride, you need to know what the vapor pressure of pure water is at  

25 ° C  You can use an online calculator to find that the vapor pressure of pure water at  25 C  is equal to about  23.8 torr .

\chi_{water}= \frac{P{sol}}{P^0{water}}

\chi_{water}= \frac{19.6}{23.8}

=0.827

Also we know that

\chi_{water}+\chi_{Nacl}= 1

This means that the mole fraction of sodium chloride is

χ_{Nacl}= 1-Χ_{water}

= 1-0.827 =0.173

3 0
2 years ago
SOMEONE HELP ASAP I NEED TO FIND AN ANSWER
astra-53 [7]

Answer:

A) Q + XZ = X + QZ is a single displacement reaction.

B) Q + Z = QZ is a synthesis reaction

C) QT = Q + T is a decomposition reaction

D) QT + XZ = QZ + XT is double replacement reaction.

Explanation:

A) Q + XZ = X + QZ

This is a single displacement reaction because it is one in which one element is substituted for another one in a compound. In this case X is substituted for Q.

B) Q + Z = QZ

This is a synthesis reaction because Q and z combine to form a single product QZ.

C) QT = Q + T

This is a decomposition reaction because the compound QT breaks down to form 2 simpler substances Q and T.

D) QT + XZ = QZ + XT

Thus is a double replacement reaction because QT and XZ have exchanged cations to form new compounds QZ and XT

6 0
2 years ago
What is the empirical formula of a compound containing 12 g of carbon, 2 g of hydrogen, and 16 g of oxygen only
Hoochie [10]

Answer:

The empirical formula=CHO. To explain it is C1H1O1 but we don't put the one that's why it is CHO

Explanation:

7 0
3 years ago
Which of the following is not found in the nucleus of an atom?
Ulleksa [173]
A. electron. The nucleus has protons and neutrons, quark is the particle which forms protons and neutrons.
8 0
3 years ago
Determine the mole ratio between oxygen and water for the following equation:
vodka [1.7K]

Answer:2.2

Explanation:

5 0
2 years ago
Other questions:
  • Which description is not a property of a base?
    6·2 answers
  • What is the concentration of a phosphoric acid solution of a 25.00 mL sample if the acid requires 42.24 mL of 0.135 M NaOH for n
    15·2 answers
  • How long is the Mississippi river?
    8·2 answers
  • A student constructs a coffee cup calorimeter and places 50.0 mL of water into it. After a brief period of stabilization, the te
    6·1 answer
  • If two oceanic plates move towards each other at a convergent boundary, then_____ may occur.
    15·2 answers
  • Please help science question ! thank you have a great day​
    10·2 answers
  • What is the net ionic equation for the reaction shown below?
    12·1 answer
  • Identify the type of reaction<br> CaCl2 + AgNO3 --&gt; AgCl + Ca(NO3)2
    13·1 answer
  • The molecular mass of air, at standard pressure and temperature, is approximately 28.97 g/mol. Calculate the mass of 3.33 moles
    10·1 answer
  • Which list shows the phases of matter in order from the greatest average kinetic energy to the least average kinetic energy per
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!