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
MaRussiya [10]
2 years ago
13

I do not know the answer. Please help

Chemistry
1 answer:
BaLLatris [955]2 years ago
4 0

I am sorry I don't know, points are points though

You might be interested in
What is the vapor pressure of an aqueous solution made up of 60.0g of urea (CH4N2O) in 180g of water? the vapor pressure of wate
djyliett [7]
To get the answer you use the Law of Raoult.


Raoult's law states that the decrease of the vapor pressure of a liquid is proportional to the molar fraction of the solute.


ΔP = Pa * Xa


Here Pa = 0.038 atm


And Xa = N a / (Na + Nb), where Na is number of moles of A and Nb is number of moles of b


Na = mass of urea / molar mass of urea =  60 g / (molar mass of CH4N2O)


molar mass of CH4N2O = 12 g/mol + 4*1g/mol + 2*14 g/mol + 16 g/mol = 60 g/mol


Na = 60 g / 60 g/mol = 1 mol


Nb = mass of water / molar mass of water = 180g / 18g/mol = 10 mol


Xa = 1 mol / (10 mol + 1 mol) = 1/11 =0.09091


ΔP = Pb * Xa = 0.038 atm * 0.09091 =  0.0035 atm


Then, the final vapor pressure of water is Pb - ΔP = 0.038atm - 0.0035atm = 0.035 atm.


 Answer: 0.035 atm
7 0
3 years ago
The pressure on 30 milliliters of an ideal gas increases from
Nana76 [90]

V1 = 30 mL

P1 = 760 torr

P2 = 1520 torr

V2 = ?

applying Boyle's Law

P1*V1 = P2*V2

760 torr * 30 mL = 1520 torr * V2

V2 = 760 torr * 30 mL / 1520 torr

( C ) is correct

8 0
3 years ago
A 3" diameter germanium wafer that is 0.020" thick at 300K has 3.419*10^17 As atoms added to it. What is the resistivity of the
earnstyle [38]
They temperature in my room is 57 degrees
5 0
3 years ago
In which state do molecules have the highest kinetic energy? in the liquid state in the solid state in the gaseous state during
Dvinal [7]
It depends on the substance,but for most substance it is in the gaseous state.
5 0
3 years ago
Read 2 more answers
Chlorine has two isotopes. The isotope with a mass of 34.969 amu has a relative abundance of 75.77%. The isotope with a mass of
Mars2501 [29]
34.969*.7577+36.966*.2433=35.489
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is the best description of a conversion table
    9·1 answer
  • Every acid contains hydrogen. True False
    13·2 answers
  • Answer the following using the following information: ∆Hfus=6.02 kJ/mol; ∆Hvap= 40.7 kJ/mol; specific heat of water is 4.184 J/g
    14·1 answer
  • when a substance donates a proton during a chemical reaction, that substance can be classified as a(an) ___ ?
    10·1 answer
  • How do chemicals affect the environment
    14·2 answers
  • Mount Everest is approximately 8,000 meters high. How many miles high is Mount Everest?
    14·2 answers
  • What’s the difference in the number of protons of an atom of lithium and an atom of chlorine :)) I need this answer quick
    15·1 answer
  • What mass of oxygen gas is consumed in a reaction that produces 4.60 mol sulfur dioxide?
    15·1 answer
  • 3. How many grams are in 9.015 x 1035 atoms of Cobalt?​
    9·1 answer
  • Mention two functions performed by the concentrated sulfuric acid in the reaction ​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!