Calculate the mass of limestone taken for the experiment.
Name the vessel that should be used to prepare solution $T$.
What colour change is seen for the methyl orange at the end-point?
Use the diagrams to complete the results table and find the mean volume of $0.100\text{ mol dm}^{-3}$ sodium hydroxide.
Calculate the amount in moles of sodium hydroxide in the average volume of $0.100\text{ mol dm}^{-3}$ sodium hydroxide in (d).
Using the equation $\text{NaOH} + \text{HCl} \rightarrow \text{NaCl} + \text{H}_2\text{O}$ and your answer to (e), deduce the amount in moles of hydrochloric acid in $25.0\text{ cm}^3$ of $T$.
Calculate the amount in moles of hydrochloric acid in $250\text{ cm}^3$ of $T$.
Calculate the amount in moles of hydrochloric acid present in the original $50.0\text{ cm}^3$ of $2.00\text{ mol dm}^{-3}$ hydrochloric acid.
Using your answers to (h) and (g), calculate the amount in moles of hydrochloric acid that reacted with the calcium carbonate in the sample of limestone.
Using the equation $\text{CaCO}_3 + 2\text{HCl} \rightarrow \text{CaCl}_2 + \text{CO}_2 + \text{H}_2\text{O}$ and your answer to (i), calculate the amount in moles of calcium carbonate that reacted with the hydrochloric acid.
Calculate the relative formula mass for calcium carbonate. $[A_r: \text{Ca}, 40; \text{C}, 12; \text{O}, 16]$
Using your answers to (j) and (k), calculate the mass of calcium carbonate in the sample of limestone.
Using your answers to (a) and (l), calculate the percentage by mass of calcium carbonate in the sample of limestone.