Exploring teaching and learning ideas, simplified
Tag: volume
Understanding moles concentration calculations is essential for accurately determining the concentration of a solution. Follow the steps to calculate the amount of solute, measure the volume of the solution, and calculate the concentration using the molarity equation. Additionally, learn how to perform a titration practical to determine the concentration of an unknown solution using stoichiometry and volume measurements.
In this experiment, the aim is to calculate the molecular mass of butane gas using a measuring cylinder and the ideal gas equation. By filling an inverted measuring cylinder with a known mass and volume of butane gas and using either the ideal gas equation or the assumption that a mole of gas will occupy 24dm3 at rtp or 22.7dm3 at stp, the molecular mass of butane can be determined. Safety precautions must be taken while handling butane gas. The experiment provides an opportunity to calculate the number of moles of gas introduced, the molecular mass of the gas, and the density of butane at r.t.p. Calculations can be made to determine the percentage difference between the molecular mass calculated using the ideal gas equation and the molar gas volume equation.
By using activated charcoal to remove the indicator, this modified experiment demonstrates the neutralization of hydrochloric acid with sodium hydroxide and the separation of a soluble salt. The procedure can be used to investigate the stoichiometry of acid-base reactions and to determine the yield of a reaction.
The aim of this practical investigation is to determine the value of zero Kelvin, also known as absolute zero, by extrapolating the relationship between temperature and volume for an ideal gas under constant pressure.
Practical Science 