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
natima [27]
3 years ago
8

What is the mole fraction of Ba(OH)2 in an aqueous solution that contains 22.8% Ba(OH)2 by mass?

Chemistry
1 answer:
antoniya [11.8K]3 years ago
4 0

Answer:

0.03

Explanation:

22.8 g Ba(OH)2 (1 mol Ba (OH)2/ 171.34 g) = 0.133 mol Ba (OH)2

77.2 g H2O (1 mol H2O/18 g) = 4.29 mol H2O

X= molar fraction= mol Ba(OH)2/ mol total

X= 0.133/ (0.133+4.29) = 0.03

You might be interested in
What happens during an alpha decay?
Andrej [43]

Answer:

Alpha decay is a type of radioactive disintegration in which unstable atomic nucleus releases a helium nucleus or alpha particle and transform into a different element. The new element formed will be reduced by four and the atomic number will be reduced by two.

Example of alpha decay is: Uranium 238 transform into Thorium 234 with the emission of an alpha particle.

6 0
3 years ago
The chemical process in which small organic molecules called monomers bond together to form a chain is called A) production B) p
notka56 [123]
B) polymerization
Polymer is the plural of monomers basically.
6 0
3 years ago
Which best describes thermal energy? It is the difference between internal energies of two or more substances. It is the sum of
Klio2033 [76]

Answer:

It is the portion of internal energy that can be transferred from one substance to another.

Explanation:

Thermal energy is the energy obtained by an object due to the motion of its particles.

It is also known as internal energy as it is the energy within the particles due to their motion.

Therefore, we can conclude that it is the portion of internal energy that can be transferred from one substance to another.

Hope this helps!

3 0
3 years ago
PLEASE HELP I'LL GIVE YOU BRAINLIEST!!
In-s [12.5K]

Answer:

C

Explanation:

5 0
3 years ago
Point How many grams of NaCl are present in 11.00 moles? ​
OlgaM077 [116]

Answer:

642.8g

Explanation:

NaCl has a molar mass of 58.44g/mol, which means one mole of NaCl has a mass of 58.44g.

11 moles of NaCl will have a mass of 642.8g.

11 mol NaCl x 58.44g = 642.8g

6 0
2 years ago
Other questions:
  • Give the number of significant figures in this number: 2.110
    5·2 answers
  • Which state of matter has a defined volume but undefined shape
    15·2 answers
  • A Grignard reagent and a ketone are reacted in ether solution and, followed by an acid workup, form a tertiary alcohol. Recall t
    14·1 answer
  • What is the molar mass of a substance?
    8·1 answer
  • I need help I don’t get it
    14·1 answer
  • A one liter flask with the two species at equilibrium contains 0.170 mole isobutane and 0.0680 mole n-butane. Then the concentra
    6·1 answer
  • A gold bar contains 5 moles of gold. How many atoms of gold are present in the bar?
    14·1 answer
  • How many moles are in 3.14 x 10^25 particles of tin?​
    9·1 answer
  • How much heat is needed to warm 250g of water from 22°C to 98°C ?​
    10·1 answer
  • Which best describes a hydrate?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!