Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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When a measuring scale is used properly to the limit of precision, the least significant digit recorded for the measurement is said to be uncertain. Explain?
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- Carry out the following conversions. Report your answers to the correct number of significant figures. (g) 31.8 lb to g (h) 4.013 qt to L (i) 985 cm to inarrow_forwardA laboratory experiment requires 13.0g of aluminum wire (d=2.70g/cm cubed). The diameter of the wire is 0.200 in. Determine the length of the wire, in centimeters, to be used for this experiment. The volume of the cylinder is pi times radius squared times length.arrow_forwardWhat is the standard SI unit for length?arrow_forward
- 1. What is the length of the rod shown below? 3 4 7 10 2. If Student A measures the volume of a liquid and reports its volume as 23.50 mL and Student B measures a different amount of the same liquid and reports its volume as 15.0 mL, is it likely that the students used the same measuring device? Yes or no? Explain your answer. 3. If you were asked to measure 25.0 mL of a liquid and to transfer it to another container, which of the following glassware could you use? Choose all that apply. Give reason(s). a) A 50-mL buret with smallest divisions of 0.1 mL b) A 50 mL beaker with smallest divisions of 10 mL c) A 50-mL volumetric flask d) A 50-mL graduated cylinder with smallest divisions of 1 mL e) A 25-mL pipet 4. A group of five students attempted to estimate 100 g of a substance by balancing the amount of the substance with a 100-g standard mass and obtained the following masses after each estimated amount was weighed: 95.8634 g, 80.8125 g, 106.5078 98.2865 and 86.4453 Create a data…arrow_forwardComplete the following non-metric conversions using the table of conversions in the slides. Remember to express your answer to the correct number of significant digits. Include only your numerical answers without units. Convert 1.730 lbs to kg Convert 53.11 in to m Convert 3.85 gal to L Convert 113.47 J to cal [a] kg [b] m [C] L [d] calarrow_forwardCarry out the following operations as if they were calculations fromexperimental data and express each answer in the correct units and with thecorrect number of significant figures.a. 5.6792 m + 0.6 m + 4.33 m =b. 3.70 g - 2.9133 g =c. 4.51 cm X 3.6666 cm =d. (22.4 g + 102.7 g + 0.005 g) / 5.478 ml =arrow_forward
- Give detailed Solution..don't give Handwritten answerarrow_forwardA student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate- you do not need to provide an answer for ?.) Fill in the missing part of this equation (what should go in the box). Note: your answer should be in the form of one or more fractions multiplied together.arrow_forward
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