what is the reading on this burette?

• 4.40mL
• 3.50mL
• 3.60mL
• 4.50mL

What is this piece of apparatus called

• Pipette

• Burette

• Janette

• Cuvette

What is this piece of apparatus called

• Pipette

• Burette

• Janette

• Cuvette

If potassium hydroxide is neutralised by sulphuric acid, what is the salt produced?

• Hydrogen sulfate

• Potassium chloride

• Potassium sulfite

• Potassium sulfate

30 mL of NaOH is neutralised by 12.3 mL of 0.2 molL^-1 HCl. What is the concentration of the NaOH?

• 82 molL^-1

• 0.82 molL^-1

• 0.49 molL^-1

• 0.082 molL^-1

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-7

I have 25mL of 1 molL^-1 HCl which neutralises 20 mL of NaOH. What is the concentration of the NaOH?

• 0.8 molL^-1

• 1 molL^-1

• 1.25 molL^-1

I have a 250 mL volumetric flask. I want to dilute my solution 1:5. What volume of solution should I put into my flask?

• 25 mL

• 250 mL

• Trick question, volume is a social construct

• 50 mL

A solution has been diluted 1:10.

After a titration is performed, the concentration of the diluted solution is determined to be 0.15 molL^-1.

What is the concentration of the original (undiluted) solution?

• 0.15 molL^-1

• 1.5 molL^-1

• 0.015 molL^-1

• 6

For the reaction Na₂CO₃ + 2HCl --> 2NaCl + H₂O

25 mL of Na₂CO₃ was titrated with 14.5 mL of 0.1 molL^-1 HCl. What is the concentration of the Na₂CO₃?

• 0.00145 molL^-1

• 7.25 x 10^-4 molL^-1

• 0.029 molL^-1

• 0.058 molL^-1

Give 0.450 molL^-1 of KOH in g L^-1 (if you are unsure, check the last set of slides in the "term 2 titrations" ppt on classroom)

• 25.24 g L^-1

• 56.1 g L^-1

• 0.450 g L^-1

• 7.25 x 10^-4 g L^-1