Stogs GCSE Interleaving Titrations S

What is the concentration of the solution if 0.2 moles are dissolved in 25cm³?

• 0.008 moldm^-3

• 0.008 molcm^-3

• 8 moldm^-3

• 8 molcm^-3

Calculate the amount of solute dissolved in 2 dm³ of a 0.1 mol/dm³ solution.

• 2 grams

• 2 moles

• 0.2 grams

• 0.2 moles

A solution of nitric acid has a concentration of 31.5 gdm^-3. What is this in moldm^-3?

• 1.0 moldm^-3

• 0.5 moldm^-3

• 2.0 moldm^-3

• 0.2 moldm^-3

Weak acids:

• Are a source of H⁺ ions.

• Fully dissociate in solution.

• Are a source of OH^- ions.

• Partially dissociate in solution.

An alkali is...

• ... a source of H⁺ ions.

• ... a soluble base.

• ... a precipitate.

• ... a source of OH^- ions.

Tags

NGSS.HS-PS1-1

In an alkaline solution phenolphthalein is:

• Red

• Pink

• Colourless

• Blue

A high concentration of H⁺ ions in solution will give:

• A high pH.

• A low pH.

• A negative pH.

• A medium pH.

Preparation of which kind of salt features filtration?

• Insoluble

• Soluble

• Both soluble and insoluble

• Neither soluble or insoluble

In a titration alkalis are usually measured with a:

• Dropping pipette

• Measuring cylinder

• Beaker

• Pipette

Select the correct equation from the options below:

• $Ca\ +\ 2HNO_3\ \rightarrow\ Ca\left(NO_3\right)_2\ +\ H_2$

• $Ca\ +\ 2HNO_3\ \rightarrow\ Ca\left(NO_3\right)_2\ +\ H_2O$

• $Ca\ +\ HNO_3\ \rightarrow\ CaNO_3\ +\ H$

• $Ca\ +\ HNO_3\ \rightarrow\ CaNO_3\ +\ H_2O$

Tags

NGSS.HS-PS1-2