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
VikaD [51]
3 years ago
5

What is the number of kilograms of solvent in a 0.70 molal solution containing 5.0 grams of solute?

Chemistry
1 answer:
Leya [2.2K]3 years ago
3 0
Molar mass of solute is 30 g/mol 
molality is defined as the number of moles of solute in 1 kg of solvent 
number of moles of solute - 5.0 g / 30 g/mol = 0.17 mol
molality of solution is 0.70 mol/kg
the mass of solvent when there are 0.7 mol of solute - 1 kg
then the mass of solvent when there's 0.17 mol of solute - 0.17 mol / 0.7 mol/kg
= 0.242 kg
therefore mass of solvent is 0.242 kg
You might be interested in
1#
Black_prince [1.1K]

Answer:

1= Magnesium

2 = Option 3 =  1s² 2s² 2p⁶

Explanation:

An electrically neutral atom consist of equal number of protons and electrons.

The answer for 1st q is magnesium because the electronic configuration showed twelve number of electrons. The atomic number of magnesium is twelve that's why this configuration is of Mg.

Mg₁₂ =  1s² 2s² 2p⁶ 3s²

The second answer is option three because has atomic number ten and third electronic configuration have ten electrons.

Ne₁₀ = 1s² 2s² 2p⁶

It is stable electronic configuration. Neon is inert because of this electronic configuration. The outer most shell is completely filled.

8 0
3 years ago
What is the covalent bond for Hydrogen + Chlorine (HCI)
kolbaska11 [484]

Answer:

HCl, also known as hydrochloric acid, has a covalent bond. The hydrogen (H) atom shares an electron with the chlorine (Cl) to form the bond.

Explanation:

Consequently, the bonding electrons in hydrogen chloride are shared unequally in a polar covalent bond. The molecule is represented by the conventional Lewis structure, even though the shared electron pair is associated to a larger extent with chlorine than with hydrogen.

6 0
3 years ago
4. If you put 1 mL of coffee into 9 mL of water, how much was the coffee diluted?
garri49 [273]

1 in 10, or 1/10, or 0.1 dilution factor It may be wrong but this is what I have!

7 0
3 years ago
Read 2 more answers
Al agregar 150g de una sustancia X en un recipiente que sostiene que contiene agua hasta 50, el nivel del agua aumenta hasta 120
vovangra [49]

Answer:

2,14 g / ml

Explanation:

Sabemos que el volumen de una sustancia es igual al cambio de volumen del agua cuando el objeto en cuestión se sumerge en el agua.

Dado que el volumen original del agua = 50 ml

Volumen de agua después de sumergir el objeto = 120 ml

Masa del objeto = 150 g

Ahora,

Densidad = masa / volumen

Densidad = 150g / 120-50 ml

Densidad = 150/70 ml

Densidad = 2,14 g / ml

4 0
2 years ago
Nah I'm gonna fail this quiz help please ​
Eva8 [605]

Answer:

It has 2 eyes

Explanation:

Quantitive observation means that it is facts based of numbers, therefore you can count how many eyes it has, but not that it has red eyes

4 0
2 years ago
Other questions:
  • CH3CH2CH3 can interact<br> with other like molecules<br> through
    7·2 answers
  • Identify a false statement about how to protect iron from corrosion.
    12·2 answers
  • A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder
    14·1 answer
  • State briefly the similarities and differences between the theories of Arrhenius and Bronsted-Lowry
    14·1 answer
  • What volume does 4.24g of argon gas occupy at 58.2 degrees celcuis and 1528torr
    7·1 answer
  • Calculate the pH after 0.16 mole of NaOH is added to 1.06 L of a solution that is 0.48 M HF and 1.12 M NaF, and calculate the pH
    9·1 answer
  • What are the mountainous parts of the moon called? Question 3 options: craters terrae maria regolith
    12·2 answers
  • When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced.
    8·1 answer
  • Mixture formation is a ________change.​
    6·1 answer
  • Which best describes xylem and
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!