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
MatroZZZ [7]
2 years ago
10

In a laboratory experiment, students synthesized a new compound and found that when 11.01 grams of the compound were dissolved t

o make 158.1 mL of a ethanol solution, the osmotic pressure generated was 1.91 atm at 298 K. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound?
Chemistry
1 answer:
Afina-wow [57]2 years ago
3 0

Answer:

892 g/mol

Explanation:

Step 1: Given and required data

  • Mass of the nonvolatile and a non-electrolyte solute: 11.01 g
  • Volume of solution: 158.1 mL = 0.1581 L
  • Osmotic pressure (π): 1.91 atm
  • Ideal gas constant (R): 0.0821 atm.L/mol.K
  • Absolute temperature (T): 298 K

Step 2: Calculate the molarity (M) of the solution

The osmotic pressure is a colligative property that can be calculated using the following expression.

π = M × R × T

M = π / R × T

M = 1.91 atm / (0.0821 atm.L/mol.K) × 298 K

M = 0.0781 M

Step 3: Calculate the molecular weight of the solute

We will use the following expression for molarity.

M = mass of solute / molecular weight of solute × liters of solution

molecular weight of solute = mass of solute / M × liters of solution

molecular weight of solute = 11.01 g / (0.0781 mol/L) × 0.1581 L

molecular weight of solute = 892 g/mol

You might be interested in
One week, Isahhhfsshgddfx gzjgsusitdjgv and the new year and I have to go to the
NeTakaya

Answer:

man idek

Explanation:

have no clue

8 0
2 years ago
Which of the following combinations would produce a neutralization reaction?
tresset_1 [31]

Answer:

it is option b

Explanation:

this is because neutralisation reaction takes place only between a base and an acid.

now, in OPTION A it is a neutral and base

OPTIONB  it is acid and base

OPTION C both are base

OPTION D  IT IS NOT POSSIBLE

7 0
3 years ago
The decomposition of nitrogen dioxide is described by the following chemical equation: Suppose a two-step mechanism is proposed
Mandarinka [93]

Answer:

<u>first step </u>

NO2(g)  ------------------------------------> NO(g) + O(g)

<u>second step</u>

NO2(g) + O(g) -----------------------------> NO(g) + O2(g)

Explanation:

<u>first step </u>

NO2(g)  ------------------------------------> NO(g) + O(g)

<u>second step</u>

NO2(g) + O(g) -----------------------------> NO(g) + O2(g)

8 0
2 years ago
Help this is an earthquake thing
mr Goodwill [35]

Answer:

im pretty sure its a push or pull thing

Explanation:

Tensional stress is the stress that tends to pull something apart. It is the stress component perpendicular to a given surface, such as a fault plane, that results from forces applied perpendicular to the surface or from remote forces transmitted through the surrounding rock.

5 0
2 years ago
Some people say that only gay and bisexual men are likely to be infected with hub true false
shusha [124]

Answer:

They do have a larger chance, but others might be infected too.

PLS GIVE BRAINLIEST

3 0
3 years ago
Read 2 more answers
Other questions:
  • How is 0.00069 written in scientific notation?
    14·2 answers
  • A cube measures 3.0 cm on each side has a mass of 25g. What is the density of a cube?
    9·1 answer
  • The chemical bond between which two atoms is most polar?<br> (1) C–N (3) S–Cl<br> (2) H–H (4) Si–O
    7·2 answers
  • Is the electron configuration given below for an inert gas, a halogen, an alkali metal, an alkaline earth metal, or a transition
    13·1 answer
  • The elements found in Group 2A, from top to bottom, include beryllium, magnesium, calcium, strontium, and barium. Which of these
    15·2 answers
  • What can you say about density if volume increase and mass stays the same
    9·2 answers
  • Here is a word equation for a chemical reaction.
    5·1 answer
  • What are the properties of water that make it unique
    5·1 answer
  • An -ite or -ate ending on the name of a compound indicates that the compound:
    8·1 answer
  • Compound A has 4 moles of hydrogen, 4 moles of oxygen, and
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!