Question

plzz explain step by step its urgent ....​

Answer 1

Answer:

0.576 M KCl

Explanation:

Molarity = moles of solute/ Volume of solution (in L)

Here, 12.4 g KCl is given.

therefore, moles of KCl = 12.4/74.6 = 0.166 mol KCl

Now molarity= (0.166)/ (289.2 X 10 ^ (-3)

                      = 0.576 M KCl (approx.)

Rest of the two questions will also be solved like this.

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