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
elena-14-01-66 [18.8K]
3 years ago
14

a radiator is filled with a mixture of 3.25kg ethylene glycol (C2H6O2) in 7.75kg of water. calculate the molality of this questi

on
Chemistry
1 answer:
Vladimir [108]3 years ago
5 0
3.25 kg in g = 3.25 * 1000 = 3250 g

Molar mass C₂H₆O₂ =  62.0 g/mol

Mass solvent = 7.75 kg

Number of moles:

n = mass solute / molar mass

n = 3250  / 62.0 

n = 52.419 moles

Molality = moles of solute / kilograms of solvent

M = 52.419 / 7.75

M = 6.7637 mol/kg

hope this helps!
You might be interested in
Earth's oceans contain many dissolved elements like calcium, sodium, and chlorine. These elements plus several others combine to
Korolek [52]
C because minerals contain sodium
4 0
3 years ago
Read 2 more answers
A student is trying to classify an unidentified, solid gray material as a metal or a nonmetal. Which question will best help the
guajiro [1.7K]

The question that will best help the student to classify the material is; "is the material malleable or ductile?"

Generally, materials can be classified as metals or non metals. There are properties that are particular to metals and there are properties that are particular to nonmetals and these properties can be used to identify each one of the materials.

The question that will best help the student to classify the material is; "is the material malleable or ductile?" These metallic properties.

Learn more:

brainly.com/question/1659592

Missing parts;

A student is trying to classify an unidentified, solid gray material as a metal or a nonmetal. Which question will best help the student classify the material? A. Is the material malleable or ductile? B. Does the material feel hard to the touch? C. Will the material float in water? D. Does the material feel rough or smooth?

8 0
2 years ago
Read 2 more answers
Similarities between glacier and geyser
il63 [147K]
A glacier is a large persistent body of ice. A geyser is a spring characterized by intermittent discharge of water ejected turbulently and accompanied by water vapor  phase (steam). They both depend on water 
6 0
4 years ago
Read 2 more answers
The vector quantity that defines the distance and direction between two positions.
Oxana [17]
So if he was 20 meters he was 10 feet from his house
8 0
3 years ago
Read 2 more answers
The transport of o2 from the outside air to tissue cells and the transport of co2 from tissue cells to the outside is known as
WARRIOR [948]
The transport of O2 from the outside air to tissue cells and the transport of CO2 from tissue cells to the outside is known as.... gas exchange.
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the meaning of blood?
    5·1 answer
  • Which statement summarizes the difference between mass and weight?
    13·1 answer
  • A non-mechanical, rigid, and fully insulated mixing tank is used to combine two inflows to produce wet steam. One inflow consist
    12·1 answer
  • Can someone help it’s due tmrrw
    8·2 answers
  • Answer for this question
    13·1 answer
  • In the following list, only ________ is not an example of a chemical reaction. the production of hydrogen gas from water the tar
    11·1 answer
  • When baking soda reacts with vinegar, one of the products produced is the gas carbon dioxide. You are charged with creating 3 di
    5·1 answer
  • What is taxonomic richness
    11·2 answers
  • which statement best describes the importance of chemical equations while solving stoichiometry problems?
    14·2 answers
  • Carboxylic acids can be made from Grignards by treating the Grignard reagents with ________. aldehydes carbon dioxide diborane c
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!