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
alexandr402 [8]
3 years ago
8

The solubility of a compound with a molecular weight of 233.2 is determined to be 27.9 g in 125.0 g of water at 398 K. Express t

his concentration in terms of molality. 0.957
Chemistry
1 answer:
sp2606 [1]3 years ago
5 0

Answer:

0.960 m

Explanation:

Given data

  • Mass of the solute: 27.9 g
  • Molar mass of the solute: 233.2 g/mol
  • Mass of the solvent: 125.0 g = 0.1250 kg

First, we will calculate the moles of solute.

27.9 g × (1 mol/233.2 g) = 0.120 mol

The molality of the compound is:

m = moles of solute / kilograms of solvent

m = 0.120 mol / 0.1250 kg

m = 0.960 m

You might be interested in
Buddhism was first brought to China via the
Firdavs [7]

Answer:

In the 1800s era

3 0
3 years ago
Read 2 more answers
Help fast. . Zz. Zz z z z
Natasha2012 [34]

Answer:

step c is filtration

step b is decantation

6 0
3 years ago
g Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glycolysis a
Alex787 [66]

Answer:

A and B are unfavorable reactions.

Explanation:

In chemical thermodynamics, an endergonic reaction  is also called a nonspontaneous reaction or an unfavorable reaction. it's a chemical reaction in which the change in free energy is positive, and energy is absorbed.

In chemical thermodynamics, an exergonic reaction  is also called a spontaneous reaction or a favorable reaction. it's a chemical reaction in which the change in free energy is negative.

ΔG>0

If the Gibbs  free energy of the reaction is positive than the reaction will be non spontaneous .

If the Gibbs  free energy of the reaction is negative than the reaction will be spontaneous

Gibbs free energy is an energy which that can be use to convert into useful work.

ΔG=ΔH-TΔS

with ΔG= Gibbs free energy

with ΔH =  enthalpy of reaction

with T = temperature of eh reaction

ΔS = Entropy change

The reaction A: Pi+glucose⟶glucose-6-phosphate+H2O

The ΔG is positive. This is an nonspontaneous reaction or an unfavorable reaction

The reaction B: Pi+fructose-6-phosphate⟶fructose-1,6-bisphosphate+H2O

The ΔG is positive. This is an nonspontaneous reaction or an unfavorable reaction.

The reaction C: ATP+H2O⟶ADP+Pi

The ΔG is negative. This is a spontaneous reaction or a favorable reaction.

A and B are unfavorable reactions.

6 0
3 years ago
What happens when you mix water and sugar​
alexandr1967 [171]

Answer:

Mixing water and sugar produces a mixture that is called a solution. In chemistry labs, this is often an experiment used to demonstrate the solubility of a solute in a solvent. In this experiment, the solute is sugar, and water is the solvent.

5 0
3 years ago
Why are the atomic masses for most elements not whole numbers?
katovenus [111]
Isotopes are always expressed in decimals. 
3 0
3 years ago
Other questions:
  • HELP!!!!!
    14·1 answer
  • What is the organelle that packages and releases materials other parts of the cell?
    9·1 answer
  • Which of the following is a nonmetal?<br><br>a.iron <br> b. silver <br> c. oxygen <br> d. copper
    9·1 answer
  • Which of the following fractions can be used in the conversion of 1000 mL to the unit m3? 1L/1ML 1CM^3/1ML 1CM^-3/1ML 1M^3/1L
    14·1 answer
  • Which of the following is the smallest volume? 500 mL 2,500 cm3 5.5 x 10-1 L 25 m3
    11·1 answer
  • If a fish gets squirted with ink it will swim slower
    8·1 answer
  • Is HF soluble in water
    15·1 answer
  • How many molecules are contained in 125 grams of water, H20?
    8·2 answers
  • Write the equilibrium expression of each chemical equation.<br> 2H2S(g) 2H2(g) + S2(g)
    8·1 answer
  • Pacing thresholds of temporary epicardial electrodes: Variation with electrode type, time, and epicardial position
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!