answer.
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
Rainbow [258]
2 years ago
5

What is the molarity if 2.00 liters containing 49.0 grams of sodium carbonate [Na2CO3)?

Chemistry
1 answer:
yKpoI14uk [10]2 years ago
5 0

Answer: The molarity of solution is 0.231 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n}{V_s}

where,

n = moles of solute

V_s = volume of solution in L

Molar mass of Na_2CO_3 = 2\times 22.99+1\times 12.01+3\times 16.00=105.99

moles of Na_2CO_3 = \frac{\text {given mass}}{\text {Molar mass}}=\frac{49.0g}{105.99g/mol}=0.462mol

Now put all the given values in the formula of molality, we get

Molarity=\frac{0.462mol}{2.00L}

Molarity=0.231M

Therefore, the molarity of solution is 0.231 M

You might be interested in
Why carbon dioxide in the atmosphere appears to be increasing
Mumz [18]

Answer:

Explanation:

Burning fossil fuels releases the carbon dioxide stored millions of years ago. ... The concentration of carbon dioxide in the atmosphere has increased more in the northern hemisphere where more fossil fuel burning occurs. Since the Industrial Revolution the concentration globally has increased by about 40 % .

4 0
2 years ago
Read 2 more answers
A 100.0 ml sample of 0.18 m hclo4 is titrated with 0.27 m lioh. determine the ph of the solution after the addition of 30.0 ml o
gizmo_the_mogwai [7]
From the molarity and volume of HClO4, we can determine how many moles of H+ we initially have: 
     0.18 M HClO4 * 0.100 L HClO4 = 0.018 moles H+

We can determine how many moles of OH- we have from the molarity and volume of LiOH:
     0.27 M LiOH * 0.030 L LiOH = 0.0081 moles OH-

When the HClO4 and LiOH neutralize each other, the remaining will be
     0.018 moles H+ - 0.0081 moles OH- = 0.0099 moles of excess H+

This means that the molarity [H+] will be
     [H+] = 0.0099 moles H+ / (0.100 L + 0.030 L) = 0.07615 M

The pH of the solution will therefore be
     pH = -log [H+] = -log 0.07615 = 1.12
6 0
2 years ago
Read 2 more answers
Suppose a soap manufacturer starts with a triglyceride that has the fatty acid chains arachidic acid, palmitic acid and palmitic
DIA [1.3K]

Answer:

Sodium arachidate; Sodium palmitate and Sodium palmitate

Explanation:

Triglycerides are esters of fatty acids with glycerol. In triglycerides, three fatty acid molecules are linked by ester bonds to each of the three carbon atoms in a glycerol molecule. The fatty acids may be same or different fatty acid molecules. Hydrolysis of triglycerides yields the three fatty acid molecules and glycerol.

Saponification is the process by which a base is used to catalyst the hydrolysis of the ester bonds in glycerides. The products of this base-catalyzed hydrolysis of triglycerides are the metallic salts of the three fatty acids and glycerol. The salts of the fatty acids are known as soaps.

For a triglyceride that has the fatty acid chains arachidic acid, palmitic acid and palmitic acid attached to the three backbone carbons glycerol, the saponification of the triglyceride with NaOH will yield the sodium salts or soaps of the three fatty acids as well as glycerol.

Arachidic acid will react with NaOH to yield sodium arachidate.

The two palmitic acid molecules will each react with NaOH to yield sodium palmitate.

8 0
1 year ago
Dehydrohalogenation of tert-pentyl bromide at higher temperatures will produce 2-methyl-1-butene as the chief product when
salantis [7]

I'm going to suppose you want the adjusted chemical reaction, using the formulas of the compounds. You can see it in the image attached.

6 0
2 years ago
In a polar reaction mechanism, the atom that gives away electrons in a neutral nucleophile will end up as a(n):
Ray Of Light [21]

The question is incomplete, the complete question is shown in the image attached.

Answer:

Cation

Explanation:

In a polar reaction mechanism, a specie must give out electrons and another specie must accept those electrons.

The specie that gives out electrons becomes electron deficient and positively charged so we refer to such a specie as a cation.

Hence, the specie that looses electrons becomes a cation.

5 0
2 years ago
Other questions:
  • As ice transforms into steam, A)new molecules are formed. B)the types of atoms are changed. C)energy is absorbed by the molecule
    9·2 answers
  • The average concentration of bromde ion in seawater is 65 mg of bromide ion per kg of seawater. what is the molarity of the brom
    8·1 answer
  • Which substance can be decomposed by chemical means?
    12·2 answers
  • How to calculate electronegativity with 3 elements?
    11·1 answer
  • What is this volume (2.49 × 104 L) in cubic meters?
    6·1 answer
  • Given the initial rate data for the reaction A + B –––> C, determine the rate expression for the reaction.
    15·2 answers
  • A student is given a sample of a blue copper sulfate hydrate. He weighs the sample in a dry covered porcelain crucible and got a
    11·1 answer
  • A solution is prepared by dissolving 91.7 g fructose in 545 g of water. Determine the mole fraction of fructose if the final vol
    12·1 answer
  • What is the main purpose of using NaOH in the saponification reaction . NaOH works as the catalyst b. NaOH solution is the solve
    14·1 answer
  • Which will not appear in the equilibrium constant expression for the reaction below?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!