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
FrozenT [24]
3 years ago
7

What are the molality and mole fraction of solute in a 22.2 percent by mass aqueous solution of formic acid (HCOOH)?

Chemistry
1 answer:
hodyreva [135]3 years ago
7 0
Calculate  the  mass  of  water  used
that  is
100-22.2=77.8g  convert   into  Kg = 77.8/1000=0.0778Kg  of  water

then  calculate  the  moles  of HCOOH  used
that   is  22.2g/molar  mass  of HCOOH(1+12+16+16+1)=46
therefore  the  moles  of HCOOH=22.2/46=0.48moles
 the  mole  of  water=  77.8/18(molar  mass  of  water= 4.32moles

the   molarity of  HCOOH =  0.48mol/0.0778kg=6.17M

The   mole  ratio= moles  of HCOOH  divided  by  total  moles
the  total  moles=  0.48+4.32=4.8moles
therefore  the  mole  ratio=   0.48/4.8moles=0.1(the  moles  fraction  of  HCOOH)
You might be interested in
Could an organism survive without its mitochondria if all the other organelle were present
lisov135 [29]
No, <span>mitochondria convert the sugar, can give it(the cell) Nutrients (food) to mainly keep it fresh and alive. Without cells mitochondria can't do its job.</span>
8 0
3 years ago
Read 2 more answers
Elena makes the table below to determine the number of atoms of each element in the chemical formula 3(NH4)2SO4.
Ymorist [56]

Answer:

plqojs then came back and her story about how the ocean had become toper for her own purposes and share the ocean and the mosquitoes and it that way in notebook life that they were never able of English orto make the ocean view the mosquitoes in the first place they would have to make it to.

5 0
3 years ago
Read 2 more answers
The formula for ammonium carbonate:
Dima020 [189]

Ammonium is NH₄⁺ and Carbonate is CO₃⁻² => Ammonium Carbonate is (NH₄)₂CO₃

6 0
3 years ago
Determine the number of atoms present in 2 moles of argon gas
Reptile [31]
2 moles x 6.02 x 10^23 maybe
4 0
2 years ago
In which of the following situstions would convection currents occur
andriy [413]
I believe your answer should be C because the heat would move from the soup to the spoon.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which would cause a hazard when working with chemicals in laboratory?
    5·1 answer
  • Which term best describes the rate at which global erosion takes place
    11·1 answer
  • What is the theoretical yield of bromobenzene in this reaction when 32.0 g of benzene reacts with 69.3 g of bromine?
    12·1 answer
  • A solar powered car converts __________ energy into _____________ energy.
    14·2 answers
  • What is the amplitude of a Node?
    5·1 answer
  • Menthol (FW = 156.3 g/mol), the strong-smelling substance in many cough drops, is a compound of carbon, hydrogen, and oxygen. Wh
    15·1 answer
  • Which source should be avoided when conducting scientific research? encyclopedias
    14·2 answers
  • Which of the following has the greatest influence on the size and force of waves?
    10·2 answers
  • 2.
    13·2 answers
  • An atom of oxygen (atomic number 8) has a mass number of 17. How many neutrons are<br> in that atom?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!