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Monica [59]
3 years ago
13

A lab group of students is trying to determine whether a base qualifies as an Arrhenius base or a Bronsted-Lowry base. Which stu

dent’s question would be the most useful to explore to help determine this? Student 1 Does the base react with an acid to produce water and a salt? Student 2 Does the base neutralize an acid? Student 3 What is the pOH of the base? Student 4 Does the base accept a proton from the acid? Question 5 options: Student 4 because a Bronsted-Lowry base always accepts a proton from an acid to form a conjugate acid. Student 2 because all bases will neutralize acids. Student 3 because the pOH of the base can be used to calculate the pH of the base. With this information the type of base can be determined. Student 1 because if the base reacts with an acid and produces water and a salt it is a Bronsted-Lowry base.
Chemistry
1 answer:
kolbaska11 [484]3 years ago
8 0

Answer:

Student 4, because a Brønsted-Lowry base always accepts a proton from an acid to form a conjugate acid.  

Explanation:

That's the definition of a Brønsted-Lowry base.

Student 2 is wrong. All bases will neutralize acids. That doesn't tell you the type of base.

Student 3 is wrong. The pH of a solution doesn't tell you the type of base.

Student 1 is wrong. Both Arrhenius and Brønsted-Lowry bases react with acids to produce water and a salt.

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<h3>Molar mass of Potassium Nitrate:-</h3>

\\ \large\sf\longmapsto KNO_3

\\ \large\sf\longmapsto 39u+14u+3(16u)

\\ \large\sf\longmapsto 53u+48u

\\ \large\sf\longmapsto 101u

\\ \large\sf\longmapsto 101g/mol

Now

\boxed{\sf No\:of\:moles=\dfrac{Given\:mass}{Molar\:mass}}

\\ \large\sf\longmapsto No\:of\:moles=\dfrac{0.565}{101}

\\ \large\sf\longmapsto No\:of\:moles=0.005mol

We know

\boxed{\sf Molarity=\dfrac{Moles\:of\:solute}{Vol\:of\:Solution\:in\:L}}

\\ \large\sf\longmapsto Molarity=\dfrac{0.005}{\dfrac{250}{1000}L}

\\ \large\sf\longmapsto Molarity=\dfrac{0.005}{0.250}

\\ \large\sf\longmapsto Molarity=0.02M

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