Question

If 4.94 grams of KOH is dissolved in water to make a final volume of 2.0L What is the

Molarity of the solution?​

Answer 1

Answer:

0.044mol l-¹

Explanation:

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Answer 2

Given:

4.94 grams of KOH is dissolved in water to make a final volume of 2.0L.

To find:

Molarity of solution?

Calculation:

First , find out the total moles of KOH:

$\rm\therefore \: moles = \dfrac{given \: mass}{molar \: mass}$

$\rm\implies \: moles = \dfrac{4.94}{56}$

$\rm\implies \: moles = 0.088 \: mol$

Now, find the molarity:

$\rm\therefore \: molarity = \dfrac{moles}{volume \: of \: solution}$

$\rm\implies\: molarity = \dfrac{0.088}{2}$

$\rm\implies\: molarity = 0.044 \: M$

So, molarity of solution is 0.044 M.