measurement is the collection of quantitative and numerical data that describes the property of an object. it is important because without measurement it would be difficult to understand. for instance you went to a shop and ask the shopkeeper to give 1 rice, so the shopkeeper will not understand it because there is no unit applied after that 1 rice. if you say give me 1 kg of rice so he will understand it. so that's why measurements are important in day-to-day life as well as in chemistry.
Because sometimes if you dont you wont do good ex. A hospital was ordered to pay 7,000 pounds for failing to train a doctor in medical equipment use. This resulted in the doctor accidentally delivering painkiller
at 10 times the required dose to a 59 year old man. He died of an overdose after recovering from an operation to unblock leg arteries. An out of court settlement was reached with the family.
so if u ever want to get into medicine you need to know how to measure exact.
Many laboratory procedures and tests rely on the correct amount of substances being used. An inaccurate measurement can lead to reactants being present in high amounts in products through unbalanced reactions; pH-sensitive reactions can be ruined if too much acid or base is added to the mix; test results can be rendered so inaccurate as to be invalid.
Measurement is a crucial part in all of the sciences, but it seems particularly important in chemistry. Some common base units are grams, liters, oC, and moles. Measurements allow chemists to describe substances and reactions in a manner that can be universally understood in the scientific community. For instance, a 1M(1 mole/liter) solution of HCl (aq), or hydrochloric acid, is the same no matter who prepares it or where it is located (of course assuming that there will be a small degree of error). If a chemist says that a reaction of 10 mL of water and 20 g of CaCl2 increased the mixture's temperature from 20oC to 30oC, it would be universally understood.
It is important to measure precisely and accurately because the accuracy makes the measurement right, but with accuracy comes precision. Once you accurately get the measurement you have to be precise. 7 is much different then 7.09582
because if you don't measure then the procedures will go wrong and your experiment wont ever be accuretly complete.
it is important because it can prevent explosions
To elaborate serious theories and decisions in science and technique we need more and more accurate measurements.
because its cool
because it cant change
to make accurate and precise measurements, so that we can compare stuff accurately on a scale, instead of saying that this apple is bigger, with a weighing scale, we can say that Apple x is 15g while Apple y is 20g so Apple y is heavier.
So your eyes do not burn.
So that others can understand and repeat the measurements.
To use the apparatuses correctly and to be safe in the laboratory. If you do not use instruments or lab apparatuses correctly (or use an apparatus for something it is not intended for) you can very seriously injure yourself!Also, if you misuse instruments used for measurements, the results of your experiments will be wrong because you will not have correctly measured the thing you were trying to determine, and so you will draw the wrong conclusion about the result of the experiment.See the Related Questions link to the left for a complete list of common laboratory apparatuses and how they are used.
So they can protect themselves from chemicals in the lab.
There is no tolerance for errors at all. So the accuracy is expected to be absolute.
to make accurate and precise measurements, so that we can compare stuff accurately on a scale, instead of saying that this apple is bigger, with a weighing scale, we can say that Apple x is 15g while Apple y is 20g so Apple y is heavier.
So you can make sure you have everything for the next day which will be the day you do the lab (:
so that if an amatuer person or some one not well versed in lab safety happens to come to the lab they still take the most important cautions if not all of them
measuring devices are really important so that you can give accurate information regarding measurements.
To ensure the accuracy and reliability of the copied material(s)
Accuracy is whether or not the average of all of the trials in a specific experiment is equal to the intended amount--it may have been given to you or you may have to do some calculations to determine the correct amount. Accuracy is important in an experiment so one can come up with the correct answer. One one to deter from having accurate measurements is having random or systematic errors (random=fault on experimenter's behalf, systematic=error in calibration of an istrument). Precision, on the other hand, entails the reproducibility of an experiment. This just means that all trial results were fairly close to each other. This does not necessarily mean the experiment was accurate, however, as precise measurements can be all close to each other but far away from the intended result. This could be the result of a systematic error. Accuracy and precision are both important to have in an experiment as it ensures both a correct result and reproducibility.
because they are both a reliable measurement and is both accurate and precise
So your eyes do not burn.
So that others can understand and repeat the measurements.
The accuracy of a measurement is the degree to which it approaches the true value.The true value of some feature is the value to which a large number of reputable measurements, made by competent experimenters, tends.Consistency or more commonly, repeatability, is the ability of the experimenter and their equipment to produce a consistent result.At a formal level, organizations such as standard institutes, ISO, ASTM and so on will have published their definitions of these important concepts.
So you'll know what tools to use when instructed to do so.