Lab Video (Lab 1) - Chem 103 Exam Questions & Answers 100% Accurate!

Which of the following statements about a beaker is/are true? - ANSWERA 50 mL beaker is more precise than a 250 mL beaker. Which of the following glassware does not have volume markings that increase from the top to bottom of the instrument? - ANSWER100 mL Volumetric Flask Which of the following is not a good balance practice? - ANSWERPress the Tare button when you are about to take a mass reading. A new measuring device has markings every 0.01 mL. Which of the following would be an appropriate volume measurement using this new device. - ANSWER1.000 mL Which of the following statements is/are true? - ANSWER- As the number of significant figures for a measurement increase, the precision of the measurement increases. - For a buret and a graduated cylinder, volume are estimated one decimal place past the markings on the device. - Always read volume measurements at eye level. In the video, during the TAs second attempt at the activity, he weighs out too many lentil beans. What is the calculated mass of his excess beans (assuming his goal was to weigh exactly 1.250 g of beans)? - ANSWER1.406 g (2.656 g - 1.250 g) In