Write the balcanced molecular and net ionic equation for the acid-base reaction:

Chemistry

1 answer:

poizon [28]3 years ago

7 0

Explanation: For the given acid-base reaction, The molecular equation is:

Molecular equation: $HNO_3(aq.)+CH_3NH_2(aq.)\rightarrow CH_3NH_3^+(aq.)+NO_3^-(aq.)$

As we know, $HNO_3$ is a strong acid, so in the ionic equation, it will completely dissociate into its respective ions.

The ionic equation for the given acid-base reaction is given by:

$H^+(aq.)+NO_3^-(aq.)+CH_3NH_2(aq.)\rightarrow CH_3NH_3^+(aq.)+NO_3^-(aq.)$

As nitrate ions are present on both the sides, so in the net ionic equation, it will get cancelled out, then the net ionic equation becomes:

Net ionic equation: $H^+(aq.)+CH_3NH_2(aq.)\rightarrow CH_3NH_3^+(aq.)$

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If the pH of vinegar is 3.0, what is the concentration of H+ in vinegar?

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Answer: The concentration of $H^{+}$ ions in vinegar is 0.001 M.

Explanation:

Given: pH = 3.0

pH is the negative logarithm of concentration of hydrogen ion.

The expression for pH is as follows.

$pH = - log [H^{+}]$

Substitute the value into above expression as follows.

$pH = - log [H^{+}]\\3.0 = - log [H^{+}]\\conc. of H^{+} = antilog (- 3.0)\\= 0.001 M$

Thus, we can conclude that the concentration of $H^{+}$ ions in vinegar is 0.001 M.

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The concentration of an HCl acid solution is initially 6mol/L. What would the concentration of a new solution be if 200 mL of th

pochemuha

Taking into account the definition of dilution, the concentration of the new solution is 1 mol/L.

<h3>Dilution</h3>

When it is desired to prepare a less concentrated solution from a more concentrated one, it is called dilution.

Dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.

In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.

A dilution is mathematically expressed as:

Ci×Vi = Cf×Vf

where