Chemistry
stephanie3
13

A 25 mL sample of 0.100 M HNO3 completely reacts with NaOH according to this equation: HNO3(aq) + NaOH (aq) ⟶ NaNO3(aq) + H2O(l) How many moles of HNO3 are in the sample? ⇒ 0.0025 mol HNO3 What volume of 0.0500 M NaOH solution is required to completely react with the HNO3? If someone could teach me how to do this, it would be awesome

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(1) Answers
rekeyia21

It is a good thing that you already have answered the first question. Now, moving on to the second question, there exist an equation for the neutralization of acid by a base that is shown below,                                           M₁V₁ = M₂V₂ Now, all the variables in the equation are given except for our unknown which is the V₂. Substituting the known values from the given above,                                        (0.1 M)(25 mL) = (0.05 M)(V₂) The value of V₂ from the equation above is 50 mL. Therefore, 50 mL of 0.05 M NaOH solution will be needed to completely react with HNO3. 

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