Question #2b580

1 Answer
May 21, 2017

Answer:

You must use 100 mL of 0.1 mol/L #"NaOH"#.

Explanation:

Step 1. Write the balanced chemical equation.

#"2NaOH + H"_2"SO"_4 → "Na"_2"SO"_4 + 2"H"_2"O"#

Step 2. Calculate the moles of #"NaOH"#

#"Moles of NaOH"= 5× 10^"-3" color(red)(cancel(color(black)("mol H"_2"SO"_4))) × "2 mol NaOH"/(1 color(red)(cancel(color(black)("mol H"_2"SO"_4)))) = "0.01 mol NaOH"#

Step 3. Calculate the volume of #"NaOH"#

#"Volume of NaOH" = 0.01 color(red)(cancel(color(black)("mol NaOH"))) × "1 L NaOH"/(0.1color(red)(cancel(color(black)("mol NaOH")))) = "0.1 L NaOH" = "100 mL NaOH"#

You must use 100 mL of #"NaOH"#.