Reliable uestion 3 2 out of 4 points Errors are defined as systematic if they co
ID: 1040707 • Letter: R
Question
Reliable uestion 3 2 out of 4 points Errors are defined as systematic if they consistently occur for every reaction performed, or as random if they occur accidently for only one reaction. Decide if each of the following errors is systematic or random. Selected Match Question Doc is in a hurry to start the last titration and uses his pipet bulb to force the measured liquid out of theB pipet into the flask. He "blows out" the pipet tip. Systematic error Noke generally reads the volume on the buret at the top of the meniscus instead of the bottom of the meniscus B Systematic error Stu notices his titrations all have a lot more solid at the endpoint than anyone else's titrations. He thinks A he might be overshooting the endpoint Random error Kemmi lifts her Erlenmeyer flask to check if the solid is forming yet. A drop of titrant accidently falls on the A lab bench instead of in the flask, so she makes a note in her observations that the titration volume will be Random error less accurate.Explanation / Answer
1) blowing out the pipette tip is a systemic error because everytime a drop remains in the pipet tip when the liquid is poured from it,which leads to consistent errors.
2) since, he generally reads the upper meniscus, that is his method of measuring is incorrect. So, he will consistently gets error in results. Therefore, it is a systemic error.
3) since, slu overshoots the endpoint in all his titration ,it might be due to some instrumental error, or methodological error which are parts of the systemic error.
4) It is a random error which occurs accidently and due to lack of attention.