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
Tanya [424]
3 years ago
5

25cm3 of 0.2mol/dm3 barium hydroxide solution reacted with 22.8cm3 hydrochloric acid. Calculate the concentration of the hydroch

loric acid in mol/dm3. Ba(OH)2 + 2HCl  BaCl2 + 2H2O

Chemistry
1 answer:
AVprozaik [17]3 years ago
7 0

Explanation:

1 mol of Ba(OH)2 = 2 moles of HCl

You might be interested in
To separate a mixture of iron filings and salt, the most efficient method would be
GaryK [48]

Answer:

Explanation:

Of course you could do the separation chemically. Dissolve the salt up in water, pass thru a filter, wash the iron filings with ethanol, which would encourage the salt to precipitate from solution.

I do hope I helped you! :)

4 0
3 years ago
The bigger the magnitude , the bigger the Earthquake
aleksley [76]

Answer:

True, in as far as greater magnitude = greater power.

7 0
3 years ago
Read 2 more answers
Which of these describes an endothermic process?
Phoenix [80]
The third one down: "When barium hydroxide is mixed with ammonium chloride, ice crystals form on the outside of the container."

This is because an endothermic reaction [process] takes in more energy than it releases. Therefore because a decrease in energy leads to a decrease in temperature, the ice crystals forming show that it must be a endothermic reaction [process].

Hope this helps! :)
AJ
3 0
3 years ago
Read 2 more answers
Which types of particles are charged and located within the nucleus of an atom?
Readme [11.4K]

Answer:

Protons, electron, and neutrons

Explanation:

3 0
3 years ago
Read 2 more answers
Sodium sulfate is slowly added to a solution containing 0.0500 M Ca 2 + ( aq ) and 0.0390 M Ag + ( aq ) . What will be the conce
levacccp [35]

The given question is incomplete. The complete question is as follows.

Sodium sulfate is slowly added to a solution containing 0.0500 M Ca^{2+}(aq) and 0.0390 M Ag^{+}(aq). What will be the concentration of Ca^{2+}(aq) when Ag_{2}SO_{4}(s) begins to precipitate? What percentage of the Ca^{2+}(aq) can be separated from the Ag(aq) by selective precipitation?

Explanation:

The given reaction is as follows.

      Ag_{2}SO_{4} \rightleftharpoons 2Ag^{+} + SO^{2-}_{4}

[Ag^{+}] = 0.0390 M

When Ag_{2}SO_{4} precipitates then expression for K_{sp} will be as follows.

         K_{sp} = [Ag^{+}]^{2}[SO^{2-}_{4}]

        1.20 \times 10^{-5} = (0.0390)^{2} \times [SO^{2-}_{4}]

       [SO^{2-}_{4}] = 0.00788 M

Now, equation for dissociation of calcium sulfate is as follows.

         CaSO_{4} \rightleftharpoons Ca^{2+} + SO^{2-}_{4}

      K_{sp} = [Ca^{2+}][SO^{2-}_{4}]

     4.93 \times 10^{-5} = [Ca^{2+}] \times 0.00788

           [Ca^{2+}] = 0.00625 M

Now, we will calculate the percentage of Ca^{2+} remaining in the solution as follows.

               \frac{0.00625}{0.05} \times 100

                 = 12.5%

And, the percentage of Ca^{2+} that can be separated is as follows.

                     100 - 12.5

                     = 87.5%

Thus, we can conclude that 87.5% will be the concentration of Ca^{2+}(aq) when Ag_{2}SO_{4}(s) begins to precipitate.

4 0
3 years ago
Other questions:
  • Predict what precipitate will be formed using the solubility rules. then write the net ionic equation for the formation of the s
    11·1 answer
  • What is the easiest way to remember polyatomic ions?
    5·1 answer
  • A student is in the lab and combines two unknown substances ( which you should never do because it is not safe). one is a white
    5·1 answer
  • write the chemical equation for the following reaction: the elements carbon and oxygen combine to yield the compound carbon diox
    5·2 answers
  • The diagram below shows students set-up for the preparation and collection of oxygen gas
    12·1 answer
  • Which of the following is the correct ranking of the three bonds and interactions in order from highest to lowest in terms of th
    8·1 answer
  • Rutherford’s experiment showed that some substances allowed alpha particles to pass through them Frequently.he theorized this ha
    6·1 answer
  • 4. Which of the following elements does NOT belong to
    9·1 answer
  • this is liquid water in the form of droplets that have condoned from atmospheric water vapor and than precipitated
    8·1 answer
  • Calculate and round to the correct number of significant digits .
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!