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
wlad13 [49]
3 years ago
15

HELP ASAP PLEASE!

Chemistry
1 answer:
trasher [3.6K]3 years ago
4 0

i think the answer is d not sure tho tried to help the best i can if not d than it is c sorry bout that

You might be interested in
Tilited walls and fences are a sign (mudflow or creep?) is occuring​
Studentka2010 [4]
Creep since it’s slow over time.
3 0
3 years ago
Which pair of elements do you expect to be most similar in their chemical properties?
Dmitry [639]
Isotopes of carbon or any element
7 0
3 years ago
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
Each square of the periodic table shows information about one element. The square usually shows the element's
omeli [17]
D, all of the above.
7 0
3 years ago
What molecules can cells break down for energy?
Orlov [11]

Answer: I think the answer is C)

Explanation:

6 0
3 years ago
Other questions:
  • What are the most reactive metals found on the periodic table?
    13·2 answers
  • Write a brief account of Ernest Rutherford’s personal and professional life in no more then 150 words
    8·1 answer
  • A covalent bond will usually form between
    13·1 answer
  • The picture (below) shows the formula for ___________.
    10·1 answer
  • Carbon NMR spectroscopy produces a spectrum of only carbon-13 nuclei in a sample. The number of carbon signals in the spectrum c
    7·1 answer
  • Where do you find the protons and neutrons of an atom?
    12·1 answer
  • Help plzzz Convert 6.1 ks to s.
    10·1 answer
  • If I have an unknown quantity of gas at a pressure of 1.2 atm, a volume of 77 liters, and a temperature of
    9·1 answer
  • A bottle containing a standard solution of KMnO4 is found to have brown stains on the inside. Why will this KMnO4 be of no furth
    14·1 answer
  • Find the average atomic mass round and to the second decimal place (0.01)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!