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
Artyom0805 [142]
1 year ago
10

You have dissolved 10 g sodium oxide in 200 ml water.calculate concentration of the solution

Chemistry
1 answer:
e-lub [12.9K]1 year ago
8 0

Answer:

0.85 Molar Na2O

Explanation:

Determine the moles of sodium oxide, Na2O, in 10 grams by dividing by the molar mass of Na2O (61.98 g/mole).

 (10 g Na2O)/(61.98 g/mole) = 0.161 moles Na2O.

Molar is a measure of concentration.  It is defined as moles/liter.  A 1 M  solution contains 1 mole of solute per liter of solvent.  [200 ml water = 0.2 Liters water.]

In this case, we have 0.161 moles Na2O in 0.200 L of solvent.

 (0.161 moles Na2O)/(0.200 L) = 0.85 Molar Na2O

You might be interested in
Explain why the quantum number set (3, 2, 3, -½) is not possible for an electron in an atom
Triss [41]
Ok the ML (the 3rd number) is not legit because the ML value can only be from -L to L (the second value)
7 0
3 years ago
Which analogy can best be likened to the activation energy of a chemical reaction?
olganol [36]
The activation energy of a reaction is the minimum energy that must be overcome in order for the reaction to take place. One way of reaching the activation energy is by manipulating the process conditions like pressure or temperature. But the most common method is by adding an enzyme. An enzyme speeds up the rate of the reaction but does not actively take part in it.

An analogy would be pushing heavy wooden block down a slope. No matter how many people push on it, the block won't move because of friction. But if you spill oil on the floor, the block would effortlessly move down the slope. The oil here is like an enzyme in a reaction.
6 0
3 years ago
The image represents a(n)
Archy [21]

Answer:

B) atom of Xenon

Explanation:

Xenon is already stable alone, because it has a complete octet, or 8 electrons. This graph is not an ion because it shows xenon is its default state, consisting of 8 electrons.

It is not a molecule because a molecule is a group of atoms, or a compound, what is shown is a singular atom.

7 0
3 years ago
Read 2 more answers
Can you please help me I need help<br><br> Thank you to the person that helped
Black_prince [1.1K]

Answer:

Model

Theory

Ellipse

Explanation:

Stan One Direction for better grade

7 0
2 years ago
Read 2 more answers
What is the symmetry of n??
Aleks [24]

Answer:

n don't hv symmetry lines.

so the symmetry of n is 0

6 0
3 years ago
Other questions:
  • Ions in a certain volume of 0.20MNaCl(aq) are represented in the box above on the left. In the box above on the right, draw a pa
    5·2 answers
  • Will make brainliest if answer correctly.
    7·1 answer
  • Explain why alchemy is not as reliable as modern day science
    13·1 answer
  • Combining Boyle's law and Charles' law forms one presure-temperature-volume relationship and holds the mass of the gas constant.
    15·1 answer
  • Which is more dense? A foam ball or a bowling ball?
    11·1 answer
  • Which can occur in a physical change?
    6·1 answer
  • How much heat must be transferred to 1600 g of iron to change the iron's
    13·1 answer
  • Is this true or false? :D
    8·2 answers
  • Which compounds were classified as organic compounds according to the early chemists
    7·1 answer
  • A gas cylinder contains exactly 1 mole of oxygen gas (O2). How many molecules of oxygen are in the cylinder?.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!