how do we use the graduated cylinder properly in measuring volumes of liquids?

Answer 1

When filling a graduated cylinder, there is a "moniscus" at the fluid level. This is around the sides of the cyliner and makes the level appear to be higher than it actually is. Some cylinders are calibrated to compensate for this but if your in a public school then they probably arent. The rule of thumb is about a millimeter above fluid level for water.

Answer 2

that's kind of a based question. If the pipette is almost a micro pipette and calibrated then i might recommend utilising that over a graduated cylinder for smaller samples. the biggest reason is which you would be able to get as small as micro liters wisely. they might tho get chemical compounds into the shaft and corrode inflicting them to lose accuracy while mistreated. a tumbler pipette that attaches to a suction gadget, i call it a curler because of the fact there's a knob you ought to roll which contain your thumb, is incredibly precise yet type of a soreness to degree out. For larger samples a graduated cylinder is better, considering you do not opt to ought to shop measuring out little quantities at a time. The greater cases you degree some thing the greater the margin of blunders will become. i might by no ability use a disposable pipette for a splendid analyzing. you especially alway consistently opt to get the splendid quantity of chemical compounds interior the least kind of measurements as you are able to. i take advantage of the two interior the lab, even nonetheless it relies upon on what the activity is. Any factor 1ml and under i take advantage of a micro pipette, 1ml-5ml i take advantage of a tumbler pipette, and something above i take advantage of a graduated cylinder i'm hoping that helped. Sorry i could not cut back it to a minimum of one answer, yet like i suggested its all in what activity you're doing

Answer 3

It's "meniscus", and theoretically it should be level with the mark on the cylinder. In reality, a graduated cylinder is not accurate enough for this to make any difference, it only becomes critical when using calibrated flasks (which have a scored line indicating calibrated volume. The meniscus show be "resting" on this line.)

Good luck!