PoNon-calculator A student was carrying out a titration between an acid and an alkal. The student carried out 4 titrations to make sure that they had at least two concordant results Suggest what concordant results are. Concordont results are ones within __ cm^3 of each other. 1 mark

Concordant results in a chemical experiment, such as a titration between an acid and an alkali, are results that are very close or identical to each other. In other words, they don't vary by some significant amount. The aim here is to increase the chance of getting a highly accurate value and reduce the margin of error that could result from experimental uncertainty or any form of inconsistent procedure. The allowance for concordant results could vary, based on targeted procedural accuracy and the specifics delivering determinations. To get the ranges, standard deviation could be calculated, but in practical works it's generally within some slight deviations. For instance, if a titration is being done and say we taking readings of the final burette values when the color change or the neutral reaction occurs, the readings should preferably within 0.1 of each other for them to be regarded as concordant. This however in more practical terms could depend on a lot of other factors like your skill, the quality of the equipment etc. So for simplicity general consensus is having values differ by very slight amounts.