An excess of sulfamic acid reacts with a 20.0 cm$^3$ portion of 0.150 mol dm$^{-3}$ $\text{NaNO}_2(aq)$. Calculate the largest volume, in dm$^3$, of nitrogen produced, measured at room temperature and pressure.
The rate of this reaction can be found by recording the volume of nitrogen produced every second. Draw a labelled diagram of the assembled apparatus that can be used to produce, collect and measure the volume of nitrogen produced in this reaction.
The concentration of $\text{NaNO}_2(aq)$ is raised. The reaction temperature stays constant. State and explain how the rate of reaction changes.
Sulfamic acid forms salts known as sulfamates that contain the anion $\text{NH}_2\text{SO}_3^-$. Magnesium carbonate, $\text{MgCO}_3$, is added to a sample of $\text{NH}_2\text{SO}_3\text{H}(aq)$. Magnesium sulfamate, water and a gas are produced. The gas turns limewater milky. Write the equation for this reaction.