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
telo118 [61]
3 years ago
5

Sodium carbonate is a reagent that may be used to standardize acids. In such a standardization it was found that a 0.498-g sampl

e of sodium carbonate required 21.3 mL of a sulfuric acid solution to reach the endpoint for the reaction.
Na2CO3 (aq) + H2SO4 (aq) → H2O (l) + CO2 (g) + Na2SO4 (aq)


What is the molarity of the H2SO4?
Chemistry
1 answer:
VMariaS [17]3 years ago
5 0

Answer:

The molarity of H2SO4 is 0.221 M

Explanation:

Step 1: Data given

Mass of sodium carbonate (Na2CO3) = 0.498 grams

Molar mass Na2CO3 = 105.99 g/mol

Volume of sulfuric acid (H2SO4) = 21.3 mL = 0.0213 L

Step 2: The balanced equation

Na2CO3 (aq) + H2SO4 (aq) → H2O (l) + CO2 (g) + Na2SO4 (aq)

Step 3: Calculate moles Na2CO3

Moles Na2CO3 = 0.498 grams / 105.99 g/mol

Moles Na2CO3 = 0.00470 moles

Step 4: Calculate moles H2SO4

For 1 mol Na2CO3 we need 1 mol H2SO4 to react and produce 1 mol H2O, 1 mol CO2 and 1 mol Na2SO4

For 0.00470 moles Na2CO3 we need 0.00470 moles H2SO4 to react

Step 5: Calculate molarity of H2SO4

Molarity H2SO4 =moles H2SO4 / volume

Molarity H2SO4 = 0.00470 / 0.0213 L

Molarity H2SO4 = 0.221 M

The molarity of H2SO4 is 0.221 M

You might be interested in
Explain what a scientific theory is, and what is necessary to make a theory strong and well supported?
Anna35 [415]

in order for a scientific theory to become a scientific law it needs to be tested with generations of data to confirm that it is really true.

7 0
2 years ago
Briefly describe the intermolecular forces present in your unknown
Korvikt [17]

An inter-molecular power is basically an alluring power between neighboring particles. There are three regular sorts of inter-molecular power: lasting dipole-dipole powers, hydrogen bonds and van der Waals' powers.

7 0
3 years ago
Can someone plz help me? :(
Sveta_85 [38]

Answer:

it's C

Explanation:

because it exhaled the carbon dioxide

8 0
2 years ago
Help I'm giving you a lot of points and do not put random or crazy stuff the real question
dybincka [34]

Answer:

Endothermic

Explanation:

Because Endothermic is cold and exothermic is hot and if you are using an ice pack it would be Endothermic and if you were using something that was hot it would be exothermic

6 0
3 years ago
Which statement describes the motion of the sun?
balu736 [363]

different parts of the sum rotate at different rates

5 0
3 years ago
Read 2 more answers
Other questions:
  • If 801 J of heat is available, what is the mass in grams of iron (specific heat = 0.45 J/g・°C) that can be heated from 22.5°C to
    10·1 answer
  • What happens if I eat AlCl3? 48 Points detailed please
    10·2 answers
  • NEED HELP FAST I WILL MARK BRAINLIEST AND THANK YOU AND RATE 5 STARS.
    13·2 answers
  • What is neutralization?
    10·2 answers
  • The electron pair geometry of a molecule is tetrahedral. What is its bond angle if it shows one lone pair of electrons and three
    12·2 answers
  • You find a nail on the ground in the parking lot, in a small puddle of water. Rust has formed on the outside of the nail. Was th
    13·2 answers
  • What is the current in 160V current if the resistance is 20
    12·1 answer
  • Describe the properties of alkali metals. based on their electronic arrangement, explain whether they exist alone in nature.
    7·1 answer
  • 10.Using the below valency chart, write chemical formula for aluminum oxide and
    13·1 answer
  • nitial mass of water, at its boiling point, is 0.8 kg. 4 kW of heater is used to boil it completely. Assuming the specific laten
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!