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
AnnZ [28]
3 years ago
9

What is the molality of an acetic acid solution that contains 0.500 mol of HC2H3O2 (molar mass: 60g/mol) in 0.800 kg of water?

Chemistry
1 answer:
jok3333 [9.3K]3 years ago
4 0

Answer: The molality of given acetic acid solution is 0.625 m.

Explanation:

Given: Moles of solute = 0.5 mol

Mass of solvent = 0.8 kg

Molality is the number of moles of solute present in a kg of solvent.

Therefore, molality of the given solution is calculated as follows.

Molality = \frac{moles}{mass of solvent}

Substitute the values into above formula as follows.

Molality = \frac{moles}{mass of solvent}\\= \frac{0.5 mol}{0.8 kg}\\= 0.625 m

Thus, we can conclude that the molality of given acetic acid solution is 0.625 m.

You might be interested in
When the oxidation number of an element decreases over the course of a reaction, that element has beenWhich of the following che
NARA [144]
AgNO3+NaCl yields AgCl+NaNo3 (reduction)
...that's the only one I know
4 0
3 years ago
Why sometimes the electrons of an atom transfer to higher energy level​
Elenna [48]

Answer:

According to Bohr, the amount of energy needed to move an electron from one zone to another is a fixed, finite amount. ... The electron with its extra packet of energy becomes excited, and promptly moves out of its lower energy level and takes up a position in a higher energy level. This situation is unstable, however.

8 0
3 years ago
What is factor that is covered up by another trait Dominant or recessive
Veseljchak [2.6K]

Answer: Recessive

Explanation: The recessive trait is often faded away by the dominant/other

Also looking at the word dominant it means powerful, most important, influential meaning it would most likely overpower

Goodluck :)

7 0
2 years ago
Which statement best describes the structure of covalent network solids? A. They are giant structures held together by weak forc
konstantin123 [22]

Answer: Option (B) is the correct answer.

Explanation:

A covalent compound is a compound formed by sharing of electrons. And, in a covalent network solid atoms are bonded by covalent bonds in a continuous network that is extending throughout the material or solid.

This continuous arrangement of atoms are like a lattice.

For example, diamond is a covalent network solid in which carbon atoms are arranged in a continuous lattice like structure.

Hence, we can conclude that the statement all the atoms are covalently bonded to other atoms to form a lattice-like structure, best describes the structure of covalent network solids.

6 0
2 years ago
If you have 23.8g of CaCl2, how many formula units is it?
NemiM [27]

Answer:

1.3×10²³ formula unit

Explanation:

Given data:

Mass of CaCl₂ = 23.8 g

Number of formula unit = ?

Solution:

Number of moles = mass/molar mass

Number of moles = 23.8 g/110.98 g/mol

Number of moles = 0.21 mol

1 mole of any substance contain 6.022×10²³ formula unit

0.21 mol × 6.022×10²³ formula unit / 1mol

1.3×10²³ formula unit

8 0
3 years ago
Other questions:
  • Can some balance the equation?<br><br>FeBr3 + H2SO --&gt; Fe2(SO4)3 + HBr​
    12·1 answer
  • A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research techni
    5·1 answer
  • Sulfur undergoes combustion to yield sulfur trioxide by the following reaction equation:
    15·1 answer
  • How could you show experimentally that the molecular formula of propene is c3h6, not ch2?
    8·2 answers
  • What was the eutectic temperature (temperature from the two lines of best fit cross) for the mixture
    11·1 answer
  • __H₂ + __ O₂ → __ H₂O What type of reaction is above:
    12·1 answer
  • Magnesium reacts with sodium fluoride to produce sodiunfluoride and elemental sodium.
    14·1 answer
  • What element has the following electron configuration? 1s 22s 22p 63s 23p 64s 2
    6·1 answer
  • Halp me need help with this question
    11·1 answer
  • What mass of oxygen is needed to burn 4g of hydrogen, given the equation below
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!