You have 825.0 mL of 0.550 M aqueous NaCl. For each of the following statements, determine...

You have 825.0 mL of 0.550 M aqueous NaCl. For each of the following statements, determine whether the statement is true of false.

If the statement is true, type "true" in the blank next to the statement.

If the statement is false, type "false" in the blank next to the statement.

________ There are 825 mL of solution

________ If you add water to the solution, the molarity will increase.

________ There is 0.550 moles of NaCl in 825 mL of solution.

________ NaCl is the solvent.

Expert Solution

Given 825 ml of 0.55 M aq NaCl solution is present which means that no of moles of NaCl =(0.825*0.55)=.45375 moles is present in 825 ml of solution .(Note: Molarity=no of moles of solute/Volume of solution(in litres))

so It is true that 825 ml of solution is present.

Molarity is defined as number of moles of solute present in a litre of solution so if you add water then volume of solution increases and hence molarit will decrease. So 2nd statement is false.

As calculated above no of moles of NaCl=0.45375 moles so 3rd statement is false.

NaCl is the solute as it is present in small amount while water is solvent here as phase is aqueous in nature.So this statement is false

queen_honey_blossom answered 2 years ago

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