A solution of barium hydroxide Ba(OH) contains 4.285 g of barium hydroxide in 100.0 mL of solution. What is molarity of the solution

Explanation:

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In this case, molarity is defined as the relationship between the moles of the solute (barium hydroxide) and the volume of the solution in liters:

In this case, as the barium hydroxide molar mass is 171.34 g/mol, one obtains the molarity in molar units (M=mol/L) as:

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answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.