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
katovenus [111]
3 years ago
10

The density of acetonitrile (CH3CN) is 0.786 g/mL and the density of methanol (CH3OH) is 0.791 g/mL. A solution is made by disso

lving 22.5 mL of CH3OH in 98.7 mL of CH3CN. (a) What is the mole fraction of methanol in the solution? (b) What is the molality of the solution? (c) Assuming that the volumes are additive, what is the molarity of CH3OH in the solution?
Chemistry
1 answer:
Simora [160]3 years ago
8 0

Answer:

IM DA ONE TALKIN

Explanation:

You might be interested in
Why do you need to remove carbon dioxide and water vapour to produce liquid air
AleksandrR [38]

Answer:

because these substances solidify when cooled and would clog the pipes of the air liquefaction plant.

7 0
3 years ago
4. Describe the landforms created at a subducting plate boundary and those created
VashaNatasha [74]

Answer:Plate Tectonics : Different Plate Boundaries Create Different Landforms and ... Plate Boundary: CONVERGENT ... As the MORE DENSE oceanic plate (OP) subducts under ... Illustration of what is happening ... Two continental plates (CP) move away from each other ... Sea Floor spreading occurs at these mid-ocean ridges.

Explanation:

3 0
3 years ago
Oh no! Igor stepped on a piece of glass on the sidewalk in front of
Helen [10]

Answer: The correct sequence for the series of event would be.

1. Igor's toe is being cut by the glass.

2. The wound surrounding the injury becomes infected  with bacteria from Igor's foot.

3. Antibodies and circulating white blood cells stick to the  bacteria creating a large complex in the lymph vessel.

4. The bacteria enter his lymph system and travel towards a lymph node.

5. The complex becomes trapped in a lymph node and is  engulfed by a phagocyte.

6. The bacteria is destroyed.

Explanation:

Whenever there is any cut or wound in the body and body encounters invasion of the foreign materials it considers it as harmful pathogen.

These pathogens when enters the body it is considered as antigen, it then travels to the lymphatic system.

These bacterial complex is then killed by the phagocytes and digested by the body.

In this way the complex is killed and the bacteria is destroyed.

8 0
4 years ago
I REALLY NEED HELP
Rashid [163]
1. <span>number of electrons
2.Si
3.Cu
4.There are three positively charged proton in the nucleus
5.mass number
6. A physical substance occur in A and a chemical change occur in B
7.53
8. dont know what you talking about.sorry
9. Independent variable
10.7.5g
This is an answer I can come up with.</span>
7 0
3 years ago
if a tiny marble has a radius of 0.25mm how many marbles can be lined up across the circumference of the earth, distance of 2490
horsena [70]

Answer : The number of marbles lined up across the circumference of the earth can be, 8.013\times 10^{10} marbles

Explanation :

First we have to calculate the diameter of tiny marble.

Diameter=2\times Radius

r = radius of marble = 0.25 mm

Diameter=2\times (0.25mm)=0.50mm

Now we have to calculate the number of marbles can be lined up across the circumference of the earth.

Given:

Circumference of the earth distance = 24900mile=4.00641\times 10^{10}mm

conversion used: 1mile=1.609\times 10^6mm

Number of marbles can be lined up = \frac{4.00641\times 10^{10}mm}{0.50mm}=8.013\times 10^{10} marbles

Thus, the number of marbles lined up across the circumference of the earth can be, 8.013\times 10^{10} marbles

3 0
4 years ago
Other questions:
  • What form of oxygen is not toxic to microorganism is it oh-?
    13·1 answer
  • What does the law of conservation of matter / Mass state
    14·1 answer
  • Please help!!!
    5·1 answer
  • A saturated solution is made by dissolving 0.327 g of a polypeptide (a substance formed by joining together in a chainlike fashi
    6·1 answer
  • Why is a triangle stronger than a square?
    5·1 answer
  • 1)Which gases contribute most significantly to acid rain?
    11·1 answer
  • C3H8+ 5O2 → 3CO2+ 4H2O <br> How many reactions in this?
    12·1 answer
  • Early historical models of the solar system were geocentric. Which of these phrases describes a geocentric solar system?
    11·2 answers
  • Which reaction is the opposite of a decomposition reaction?
    15·1 answer
  • Correctly label the picture with the correct phase
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!